CompTIA A+ Core 1 220-1201 220-1201 Questions 376–450 | Page 6/12

376

MCQhard

A technician is configuring a RAID array in a server that requires both high performance and fault tolerance. The server has four identical 2TB SATA HDDs. The RAID controller supports RAID 0, 1, 5, and 10. Which RAID level should the technician choose to meet both requirements?

A.RAID 0

B.RAID 1

C.RAID 5

D.RAID 10

AnswerD

RAID 10 combines striping and mirroring, offering both high performance and fault tolerance. With four drives, it creates two mirrored pairs striped together, allowing up to two drive failures (one per mirror) without data loss.

Why this answer

This question tests understanding of RAID levels and their trade-offs. RAID 10 (striping + mirroring) provides both performance (striping) and fault tolerance (mirroring), but requires at least 4 drives. RAID 5 offers fault tolerance with parity but has slower write performance.

RAID 0 has no fault tolerance, and RAID 1 only provides fault tolerance with no performance gain.

Full explanation →

377

MCQhard

A company uses a public cloud IaaS provider. The security team discovers that a virtual machine's data disk was accidentally deleted by an administrator. They need to recover the data from a snapshot taken 24 hours ago. The snapshot is stored in the same cloud region. What is the most efficient recovery method?

A.Restore the entire VM from the snapshot

B.Create a new data disk from the snapshot and attach it to the VM

C.Download the snapshot to an on-premises server and then upload it

D.Use the snapshot to create a new VM and then copy files via network

AnswerB

In a public cloud IaaS environment, a snapshot of a data disk can be directly used to provision a new, independent managed disk. This newly created disk can then be attached to the existing, running virtual machine, effectively replacing the lost data disk without requiring a full VM restart. This method ensures minimal service interruption and efficiently restores only the necessary component.

Why this answer

Creating a new data disk from the snapshot and attaching it to the existing VM is the most efficient recovery method because it restores only the deleted data disk without affecting the OS disk or requiring a full VM rebuild. This minimizes downtime and preserves the VM's configuration, network settings, and other attached disks.

Exam trap

The trap here is assuming a full VM restore is needed, when the question specifies only a data disk was deleted; candidates must recognize that disk-level recovery is faster and less disruptive.

How to eliminate wrong answers

Option A is wrong because restoring the entire VM from the snapshot would revert the OS disk and all other disks to the 24-hour-old state, potentially losing newer changes and causing unnecessary downtime. Option C is wrong because downloading the snapshot on-premises and re-uploading it is slow, costly in egress/ingress fees, and introduces unnecessary complexity. Option D is wrong because creating a new VM and copying files over the network is indirect, slower, and requires additional configuration compared to simply attaching a disk.

Full explanation →

378

MCQmedium

A user reports that their desktop computer's display is very dim, even at maximum brightness settings. The monitor is an older LCD model with a CCFL backlight. What component is most likely failing?

A.The LCD panel itself

B.The inverter board

C.The video cable

D.The power supply unit

AnswerB

The inverter board is a critical component in older LCD monitors, responsible for converting the low-voltage DC power from the power supply into the high-voltage AC required to illuminate the Cold Cathode Fluorescent Lamp (CCFL) backlight. If the inverter fails or degrades, it cannot supply sufficient voltage to the CCFL, resulting in a significantly dimmed display or a completely black screen. This uniform dimness is a hallmark symptom of an inverter malfunction.

Why this answer

The inverter board is responsible for converting DC power from the power supply into the high-voltage AC required to drive the CCFL (cold cathode fluorescent lamp) backlight in older LCD monitors. When the inverter fails, the backlight either dims significantly or fails entirely, even though the LCD panel itself may still be receiving a valid video signal and the brightness controls appear to function. This matches the symptom of a very dim display at maximum brightness settings.

Exam trap

CompTIA A+ often tests the misconception that a dim display is always caused by a failing LCD panel or a bad video cable, when in fact the backlight subsystem (inverter or CCFL) is the most likely culprit in older monitors with CCFL technology.

How to eliminate wrong answers

Option A is wrong because a failing LCD panel typically produces symptoms such as dead pixels, color distortion, or complete loss of image, not a uniform dimness that is adjustable via brightness controls. Option C is wrong because a failing video cable usually causes flickering, no signal, or artifacts, not a consistent dimness that persists across brightness adjustments. Option D is wrong because a failing power supply unit would likely cause the entire monitor to not power on, or exhibit intermittent shutdowns, rather than a dim backlight while the display remains operational.

Full explanation →

379

MCQmedium

A user reports that their iPhone cannot send or receive MMS messages, but SMS works fine. They have enabled cellular data. What is the most likely missing configuration?

A.The phone's iMessage is disabled.

B.The MMS APN settings are incorrect or missing.

C.The phone is in Airplane Mode.

D.The recipient's phone does not support MMS.

AnswerB

Access Point Name (APN) settings are crucial configurations that define how a mobile device connects to the carrier's network for data services, including multimedia messaging. Unlike standard internet data or SMS, MMS often requires a separate, specific APN configuration, including details like the MMSC (Multimedia Messaging Service Center) address, MMS proxy, and port number. If these particular MMS APN settings are incorrect, incomplete, or missing, the device will be unable to properly route and deliver multimedia messages, even if regular SMS and cellular data are functional.

Why this answer

B is correct because MMS requires a properly configured APN (Access Point Name) to establish the data connection for sending and receiving multimedia content. Since SMS works (which uses the control channel, not data), but MMS fails despite cellular data being enabled, the most likely issue is that the MMS APN settings are incorrect or missing. Without the correct APN, the device cannot route MMS traffic through the carrier's multimedia messaging center.

Exam trap

The 220-1201 exam often tests the misconception that MMS relies on iMessage or that enabling cellular data alone is sufficient, when in fact MMS requires a specific APN configuration separate from general data APN settings.

How to eliminate wrong answers

Option A is wrong because iMessage is Apple's proprietary messaging service that uses data or Wi-Fi; disabling it does not affect MMS, which is a carrier-based service using the MMSC (Multimedia Messaging Service Center). Option C is wrong because Airplane Mode disables all wireless radios, including cellular data and SMS, so SMS would not work if the phone were in Airplane Mode. Option D is wrong because MMS delivery depends on the sender's device and carrier configuration, not the recipient's phone support; if the recipient's phone lacks MMS support, the message would fail to deliver but the sender's iPhone would still attempt to send it.

Full explanation →

380

MCQhard

A technician is troubleshooting an issue where a user's computer can access the internet but cannot connect to a network printer by its IP address. The printer is on the same subnet and is powered on. Pinging the printer's IP from the computer fails. Which network service is most likely causing the problem?

A.DNS

B.DHCP

C.ARP

D.NAT

AnswerC

ARP (Address Resolution Protocol) is a critical protocol used to map an IP address to its corresponding MAC (Media Access Control) address within the same local network segment. When a computer needs to send data to a device on its local network, it first uses ARP to discover the destination's MAC address. If ARP fails to resolve the printer's IP address to its MAC address, the computer cannot construct the necessary Ethernet frame headers, preventing any Layer 2 communication, including a ping.

Why this answer

Since the computer can access the internet but cannot ping the printer on the same subnet, the issue is at Layer 2 (Data Link) rather than Layer 3 (Network). ARP (Address Resolution Protocol) is responsible for resolving a known IP address to a MAC address on the local subnet. If the ARP cache is corrupted, missing, or the printer fails to respond to ARP requests, the computer cannot build the correct Ethernet frame to reach the printer, causing the ping to fail even though the printer is powered on and on the same subnet.

Exam trap

CompTIA A+ often tests the misconception that a failed ping to a local IP must be a Layer 3 routing or DNS issue, when in fact the problem is often a missing or incorrect ARP entry at Layer 2.

How to eliminate wrong answers

Option A is wrong because DNS resolves hostnames to IP addresses, but the technician is already using the printer's IP address directly, so DNS is not involved in this failure. Option B is wrong because DHCP assigns IP addresses dynamically; the computer already has internet access (indicating a valid IP configuration), and the printer is on the same subnet, so DHCP is not the cause of the failed ping. Option D is wrong because NAT translates private IP addresses to public ones for internet traffic, but the printer and computer are on the same local subnet, so no NAT is required for local communication.

Full explanation →

381

MCQeasy

A user complains that their internet is slow in the evenings, especially when streaming video. They have a cable modem and a wireless router. What is the most likely cause?

A.The wireless router is outdated.

B.The ISP is throttling streaming traffic.

C.Network congestion due to many users sharing the same cable node.

D.Interference from other wireless networks.

AnswerC

Cable ISPs share one coax node among many subscribers, so evening peak usage causes contention and reduced throughput per household. This shared-medium congestion, not the modem or router, explains the time-of-day pattern and the streaming degradation the user reports.

Why this answer

C is correct because cable internet uses a shared coaxial cable node, and during peak evening hours, many subscribers in the same neighborhood are actively using the connection. This shared bandwidth leads to contention and reduced throughput, especially for high-bandwidth activities like streaming video, which is a classic symptom of node congestion rather than a local issue.

Exam trap

The 220-1201 exam often tests the distinction between local wireless issues (interference, outdated hardware) and ISP-level shared medium congestion, and the trap here is that candidates blame the wireless router or interference because the symptom is 'slow internet,' but the evening-specific timing is the key clue that points to cable node oversubscription.

How to eliminate wrong answers

Option A is wrong because an outdated wireless router would cause slow speeds at all times, not specifically in the evenings, and would affect all devices equally regardless of activity type. Option B is wrong because while ISPs can throttle streaming traffic, this is typically applied consistently across all times of day and is less common than simple congestion; the evening-specific pattern strongly points to shared medium contention rather than a policy-based throttle. Option D is wrong because interference from other wireless networks would cause intermittent connectivity or reduced throughput regardless of time of day, but the evening-specific pattern and the focus on streaming video point to upstream bandwidth saturation at the cable node, not local RF interference.

Full explanation →

382

MCQeasy

A customer complains that their laptop battery no longer holds a charge and the laptop only works when plugged in. The technician confirms the battery is removable. What is the most appropriate first step in servicing this issue?

A.Update the battery driver in Device Manager.

B.Run a battery calibration utility from the manufacturer.

C.Power off the laptop and remove the battery.

D.Replace the AC adapter to see if the charging circuit is faulty.

AnswerC

Before performing any internal hardware service, such as replacing a laptop battery, it is crucial to power off the device completely and disconnect all external power sources. Removing the battery while the system is powered down eliminates the risk of electrical shock, prevents potential short circuits, and protects sensitive internal components from damage during the physical removal and installation process. This is the fundamental safety protocol for hardware replacement.

Why this answer

The correct first step is to power off the laptop and remove the battery. This ensures safety and prevents electrical shorts or damage during replacement. After removal, the technician can install a new battery.

Full explanation →

383

MCQeasy

A customer complains that their desktop computer loses network connectivity every time a large file is transferred. The issue does not occur during normal web browsing. What hardware component is most likely at fault?

A.The CPU is overheating.

B.The power supply unit is underpowered.

C.The network interface card (NIC) is failing.

D.The Ethernet cable is too long.

AnswerC

A failing Network Interface Card (NIC) often exhibits intermittent issues, particularly when subjected to high data throughput, such as during large file transfers. Under increased load, a defective NIC may struggle to process packets efficiently, leading to dropped connections, significant packet loss, or complete network disconnections as its internal components (e.g., controller chip, transceivers) overheat or fail to keep up. This specific symptom points directly to a component responsible for network communication under stress.

Why this answer

The network interface card (NIC) is most likely at fault because it handles the transmission and reception of network data. During large file transfers, the NIC operates at high throughput, which can expose intermittent failures such as overheating, faulty components, or driver issues. Normal web browsing uses less bandwidth and may not trigger the problem.

A failing NIC can cause connectivity drops under heavy load.

Exam trap

220-1201 often tests the tendency to blame the cable or PSU for intermittent network issues, but the key is that the problem only occurs under high load, pointing to the NIC.

How to eliminate wrong answers

Option A is wrong because CPU overheating typically causes system slowdowns, crashes, or throttling, not specifically network disconnects during large transfers. Option B is wrong because an underpowered PSU would cause system instability or shutdowns under high power draw, but large file transfers do not significantly increase power consumption compared to other tasks. Option D is wrong because an Ethernet cable that is too long (exceeding 100 meters for twisted pair) would cause signal degradation and poor performance consistently, not only during large transfers.

Full explanation →

384

MCQeasy

A technician is setting up a wireless network for a home office that requires the fastest possible speeds for streaming 4K video. The router supports 802.11ac and has three antennas. Which configuration will yield the highest throughput?

A.Set the router to 802.11n mode only.

B.Enable 40 MHz channel width on the 2.4 GHz band.

C.Use the 5 GHz band with MIMO enabled and a channel width of 80 MHz.

D.Disable SSID broadcast to reduce overhead.

AnswerC

The 5 GHz band avoids 2.4 GHz congestion and supports wider channels, while 80 MHz doubles throughput versus 40 MHz. MIMO with three antennas multiplies spatial streams, directly satisfying the demand for the fastest possible 4K streaming speeds.

Why this answer

802.11ac operates exclusively on the 5 GHz band, and combining MIMO (multiple-input multiple-output) with an 80 MHz channel width maximizes throughput by increasing spatial streams and spectral bandwidth. This configuration supports the high data rates required for 4K video streaming, typically exceeding 1 Gbps aggregate throughput.

Exam trap

A common misconception is that 802.11ac can use the 2.4 GHz band or that wider channels on 2.4 GHz are beneficial, when in fact 802.11ac is 5 GHz only and 40 MHz on 2.4 GHz is prone to interference and rarely yields throughput gains.

How to eliminate wrong answers

Option A is wrong because 802.11n mode caps throughput at 600 Mbps (with 40 MHz channels and 4 spatial streams), which is lower than 802.11ac's potential and lacks the wider channel widths and higher modulation (256-QAM) needed for optimal 4K streaming. Option B is wrong because enabling 40 MHz channel width on the 2.4 GHz band is not supported by 802.11ac (which only uses 5 GHz) and on 2.4 GHz it often causes interference with Bluetooth and other devices, reducing actual throughput. Option D is wrong because disabling SSID broadcast does not reduce overhead or improve throughput; it only hides the network name, which can actually increase probe request overhead and does not affect data transmission speed.

Full explanation →

385

MCQeasy

A user reports that their laptop can connect to the corporate Wi-Fi but cannot access the internet. Other devices on the same network work fine. What is the most likely cause of this issue?

A.The wireless router has failed.

B.The laptop's DNS server settings are incorrect.

C.The network cable is unplugged.

D.The ISP is down.

AnswerB

Incorrect DNS server settings prevent the laptop from resolving human-readable domain names, like 'google.com', into their corresponding IP addresses. While the laptop can still obtain an IP address and communicate with other devices on the local network using their IP addresses, it cannot navigate the internet by name. This specific issue allows local network connectivity but blocks external web browsing, perfectly matching the described symptoms.

Why this answer

If the laptop associates with Wi-Fi and gets an IP address but cannot resolve hostnames, the most likely culprit is incorrect DNS server settings on that specific laptop, since other devices on the same network work fine. This isolates the problem to the client's configuration rather than the network or ISP. Checking ipconfig /all for the DNS servers and comparing to a working device would confirm it.

Exam trap

220-1201 often tests the instinct to blame the network or ISP, when the clue 'other devices work fine' points squarely at a client-side DNS misconfiguration.

How to eliminate wrong answers

Option A is wrong because a failed wireless router would prevent all devices from connecting, not just one laptop. Option C is wrong because the user is on Wi-Fi, so an unplugged Ethernet cable is irrelevant to their connectivity. Option D is wrong because an ISP outage would affect every device on the network, not a single laptop while others work normally.

Full explanation →

386

MCQmedium

A user reports that their email client can receive messages but cannot send any. The email server settings are correct, and the user can connect to the internet. The firewall is blocking outbound traffic on certain ports. Which protocol and port combination is likely blocked?

A.POP3 on port 110

B.IMAP on port 143

C.SMTP on port 25

D.HTTPS on port 443

AnswerC

SMTP (Simple Mail Transfer Protocol) on port 25 is the standard protocol specifically designed for sending email messages between mail servers and from an email client to an outgoing mail server. If port 25 is blocked, the email client would be unable to establish a connection with the server to transmit outgoing messages. This would directly prevent the user from sending emails, while their ability to receive mail via POP3 or IMAP would remain unaffected.

Why this answer

SMTP (Simple Mail Transfer Protocol) is used for sending outgoing email messages. By default, SMTP uses port 25. If the firewall blocks outbound traffic on port 25, the email client can still receive messages (using POP3 or IMAP) but will be unable to send any, perfectly matching the user's symptoms.

Exam trap

The 220-1201 exam often tests the distinction between incoming (POP3/IMAP) and outgoing (SMTP) mail protocols, trapping candidates who confuse receiving ports with sending ports.

How to eliminate wrong answers

Option A is wrong because POP3 (Post Office Protocol 3) on port 110 is used for receiving email from a mail server, not for sending; blocking it would prevent receiving, not sending. Option B is wrong because IMAP (Internet Message Access Protocol) on port 143 is also used for receiving and managing email on the server, not for sending; blocking it would affect inbox access, not outbound mail. Option D is wrong because HTTPS on port 443 is used for secure web traffic, not for email sending; blocking it would affect web browsing, not email transmission.

Full explanation →

387

MCQeasy

A technician is tasked with enabling hardware-level virtualization on a desktop to run a virtual machine. Which UEFI setting must be enabled?

A.Enable Secure Boot

B.Enable Execute Disable Bit (XD/NX)

C.Enable Intel VT-x or AMD-V

D.Set SATA mode to AHCI

AnswerC

Intel Virtualization Technology (VT-x) and AMD Virtualization (AMD-V) are essential CPU extensions that provide hardware-assisted virtualization capabilities. These technologies allow a hypervisor to run virtual machines more efficiently by directly accessing hardware resources, significantly reducing the overhead typically associated with software-only virtualization. Enabling these features in the BIOS/UEFI firmware is a prerequisite for deploying and optimizing virtualized environments, ensuring guest operating systems perform near native speeds and enhancing overall virtualization performance.

Why this answer

Hardware-level virtualization on Intel and AMD processors requires enabling Intel VT-x or AMD-V in UEFI/BIOS, which exposes the CPU virtualization extensions needed by hypervisors like Hyper-V, VMware, or VirtualBox. Without this setting, the hypervisor cannot create hardware-accelerated VMs.

Exam trap

The trap is confusing other CPU/security features (Secure Boot, XD/NX) with the specific virtualization extension setting (VT-x/AMD-V), since all are UEFI options but only one enables hardware virtualization.

How to eliminate wrong answers

Option A is wrong because Secure Boot verifies bootloader and kernel signatures to prevent rootkits; it does not enable CPU virtualization extensions. Option B is wrong because Execute Disable Bit (XD/NX) is a memory protection feature that marks pages non-executable to mitigate buffer overflow attacks, unrelated to virtualization. Option D is wrong because setting SATA mode to AHCI affects how storage controllers are presented to the OS, not whether the CPU supports virtualization.

Full explanation →

388

MCQhard

A technician is deploying a point-to-point wireless bridge between two buildings 500 meters apart. The link must support at least 1 Gbps throughput. Both buildings have clear line of sight. Which antenna type and frequency combination is most appropriate?

A.Omnidirectional antennas on 2.4 GHz

B.Yagi antennas on 2.4 GHz

C.Parabolic dish antennas on 5 GHz

D.Patch antennas on 5 GHz

AnswerC

Parabolic dish antennas are the optimal choice for long-distance, high-throughput point-to-point wireless bridges due to their extremely high gain and narrow beamwidth. This focused energy transmission ensures maximum signal strength and minimal interference over a 500-meter distance, crucial for maintaining a stable link. Coupled with the 5 GHz frequency band, which offers significantly more available bandwidth and less congestion than 2.4 GHz, achieving a 1 Gbps data rate becomes highly feasible.

Why this answer

A point-to-point bridge over 500 meters requiring 1 Gbps throughput needs high-gain, directional antennas and a frequency band with sufficient bandwidth. Parabolic dish antennas on 5 GHz provide the necessary high gain (typically 20-30 dBi) and utilize the wider 5 GHz channel bandwidth (up to 80 or 160 MHz) to achieve gigabit speeds, while maintaining a narrow beamwidth to focus the signal between the two buildings.

Exam trap

A common trap in CompTIA A+ is assuming that 2.4 GHz is always better for long distances due to lower attenuation, but for high-throughput point-to-point links, 5 GHz with high-gain directional antennas (like parabolic dishes) is required to achieve gigabit speeds. 2.4 GHz lacks sufficient channel bandwidth and is more prone to interference.

How to eliminate wrong answers

Option A is wrong because omnidirectional antennas radiate in all directions, causing significant signal loss over distance and interference, and 2.4 GHz has limited channel bandwidth (20/40 MHz) that cannot support 1 Gbps throughput. Option B is wrong because Yagi antennas, while directional, typically have lower gain (10-15 dBi) than parabolic dishes and operate on 2.4 GHz, which lacks the channel width (max 40 MHz) to achieve 1 Gbps. Option D is wrong because patch antennas, though directional, have moderate gain (6-15 dBi) and are designed for shorter-range indoor or outdoor links, not the 500-meter distance required for gigabit throughput.

Full explanation →

389

MCQeasy

A user is traveling internationally and complains that their smartphone's cellular data stopped working after landing. They have an international roaming plan activated. What should the technician check first to restore data connectivity?

A.Verify that the SIM card is not locked to the home carrier.

B.Check if the device's date and time are set correctly.

C.Ensure that the device's data roaming setting is enabled.

D.Reset the device's network settings to default.

AnswerC

When traveling internationally, mobile devices connect to partner cellular networks in the visited country to maintain service. To utilize cellular data services on these foreign networks, the device's "Data Roaming" setting must be explicitly enabled. This setting is frequently disabled by default by manufacturers or users to prevent unexpected charges, making its activation the most common and direct solution for a lack of data connectivity despite having an active international roaming plan.

Why this answer

When traveling internationally, cellular data requires the device's data roaming setting to be enabled to connect to foreign networks. Even with an active international roaming plan, the smartphone will not automatically use data on a visited network unless this setting is turned on. This is a standard requirement across GSM and LTE networks, as data roaming is disabled by default to prevent unexpected charges.

Exam trap

The 220-1201 exam often tests the distinction between having a roaming plan (provisioning) and actually enabling the data roaming setting on the device (configuration), leading candidates to incorrectly assume the plan alone is sufficient.

How to eliminate wrong answers

Option A is wrong because a SIM locked to the home carrier prevents the device from registering on any foreign network at all, but the user's cellular data stopped working after landing, implying the device likely registered (or at least attempted to) and the issue is specifically with data connectivity, not network registration. Option B is wrong because incorrect date and time can cause SSL/TLS certificate validation failures for secure connections, but it does not prevent the device from establishing a basic data session on the visited network; data roaming is a prerequisite for that. Option D is wrong because resetting network settings is a more drastic troubleshooting step that should be performed after verifying simpler settings like data roaming; it is not the first check and may erase saved Wi-Fi networks and Bluetooth pairings unnecessarily.

Full explanation →

390

MCQeasy

A technician is setting up a new file server and needs to ensure that users can access shared folders using a friendly name like \\fileserver\share instead of an IP address. Which protocol must be configured correctly on the network?

A.DNS

B.DHCP

C.SMB

D.HTTP

AnswerA

When users need to access a file server by its friendly name (e.g., \\fileserver), the Domain Name System (DNS) is crucial. It translates this human-readable hostname into the corresponding numerical IP address (e.g., 192.168.1.100) that network devices use for communication. Without DNS, users would have to remember and type the server's IP address directly, which is impractical and prone to errors in dynamic environments. This resolution is fundamental for client devices to locate and establish a connection with the server.

Why this answer

DNS (Domain Name System) resolves the friendly hostname 'fileserver' to the server's IP address, allowing users to use \\fileserver\share instead of an IP address. Without DNS, the SMB client cannot translate the name, and the connection fails. This makes DNS the correct protocol for name resolution in this scenario.

Exam trap

CompTIA A+ often tests the distinction between the protocol that provides the service (SMB) and the protocol that enables name resolution (DNS), leading candidates to mistakenly select SMB because it is directly involved in file sharing.

How to eliminate wrong answers

Option B (DHCP) is wrong because DHCP assigns IP addresses dynamically but does not resolve hostnames to IPs; it can provide DNS server addresses, but it is not the protocol that performs name resolution. Option C (SMB) is wrong because SMB is the file-sharing protocol used to access the share itself, not the protocol that resolves the server name to an IP address. Option D (HTTP) is wrong because HTTP is used for web traffic and does not handle NetBIOS or DNS name resolution for SMB file shares.

Full explanation →

391

MCQmedium

A technician is troubleshooting a laser printer that produces pages with a repeating smudge mark every 3 inches down the page. The printer uses a toner cartridge with an integrated drum. What component is most likely causing this defect?

A.The photosensitive drum is scratched.

B.The fuser roller is damaged.

C.The toner cartridge is low on toner.

D.The transfer roller is dirty.

AnswerB

The fuser assembly is responsible for permanently bonding the toner to the paper using heat and pressure. A damaged fuser roller, such as one with a tear, scratch, or accumulated debris, will directly transfer this physical defect to the paper as it passes through. Given that many fuser rollers have a circumference of approximately 3 inches, a repeating smudge at this precise interval is a strong indicator of a defect on the fuser roller, as the damage would mark the paper with each rotation.

Why this answer

A repeating defect at a regular interval is often caused by a damaged roller, and the interval helps identify which roller. A 3-inch interval matches the circumference of the fuser roller. The drum's circumference is typically larger, so the interval would be different.

Full explanation →

392

MCQhard

A technician is troubleshooting a display that shows a 'ghost' image of a previous screen that fades slowly. The monitor is a 4-year-old IPS panel. What is the most likely cause?

A.The monitor's response time setting is too low.

B.The video cable is causing signal interference.

C.The monitor's refresh rate is set incorrectly.

D.The LCD panel has image retention or burn-in.

AnswerD

Image retention, often referred to as "ghosting" or "temporary burn-in," occurs when the liquid crystals within an LCD panel fail to completely revert to their original state after displaying a static image for an extended duration. This phenomenon results in a faint, residual outline or "ghost" of the previous image remaining visible on the screen, which typically fades over time if the display shows dynamic content. The persistent "2" described is a classic symptom of this panel characteristic, indicating a physical issue with the display's pixels.

Why this answer

Ghosting or image retention on an IPS panel is often due to burn-in or temporary image persistence. This occurs when static images are displayed for long periods, causing the liquid crystals to not fully relax. It is a hardware defect that may be irreversible.

Full explanation →

393

MCQeasy

A technician is configuring a new web server that must support both standard and encrypted web traffic. Which two ports should be opened in the firewall?

A.Port 22 and 21

B.Port 80 and 443

C.Port 3389 and 5900

D.Port 53 and 123

AnswerB

Port 80 carries unencrypted HTTP, while port 443 carries TLS-encrypted HTTPS, so opening both satisfies the requirement for standard and encrypted web traffic. No other port pair provides this combination; alternatives such as 21/22 or 25/110 serve FTP, SSH, and mail protocols instead.

Why this answer

Standard web traffic uses HTTP on port 80, while encrypted web traffic uses HTTPS on port 443. Opening these two ports in the firewall allows the web server to serve both unencrypted and TLS/SSL-encrypted content to clients.

Exam trap

CompTIA often tests the distinction between ports used for web services (80/443) versus ports used for remote administration (22, 3389, 5900) or infrastructure services (53, 123), leading candidates to confuse secure web traffic with SSH or RDP.

How to eliminate wrong answers

Option A is wrong because port 22 is used for SSH (secure remote administration) and port 21 is used for FTP (file transfer), neither of which are web traffic protocols. Option C is wrong because port 3389 is used for RDP (Remote Desktop Protocol) and port 5900 is used for VNC (remote frame buffer), both for remote desktop access, not web serving. Option D is wrong because port 53 is used for DNS (domain name resolution) and port 123 is used for NTP (Network Time Protocol), neither of which serve web pages.

Full explanation →

394

MCQmedium

A technician is setting up a new wireless network for a warehouse. The warehouse has metal shelving and concrete walls. Which wireless standard should the technician choose to maximize range and penetration through obstacles?

A.802.11ac

B.802.11ax (Wi-Fi 6)

C.802.11n

D.802.11a

AnswerB

802.11ax, or Wi-Fi 6, is a dual-band standard supporting both 2.4 GHz and 5 GHz frequencies, offering significant improvements in efficiency and capacity. However, its primary advantages are realized in dense client environments, and while its 2.4 GHz operation provides better penetration than 5 GHz, the standard itself is often overkill and not specifically optimized for maximum range and obstacle penetration as its paramount feature. For a scenario prioritizing raw range and penetration over high-density client management or peak throughput, older standards can be more effective and cost-efficient.

Why this answer

802.11ax (Wi-Fi 6) operates in both the 2.4 GHz and 5 GHz bands. For maximizing range and penetration through obstacles like metal shelving and concrete walls, the 2.4 GHz band is crucial due to its lower frequency and better diffraction characteristics. While 802.11n also uses 2.4 GHz, 802.11ax offers significant advancements such as OFDMA, improved MU-MIMO, and more efficient modulation schemes (e.g., 1024-QAM).

These technologies lead to a more robust and efficient signal, which can provide better effective range and reliability in challenging environments compared to 802.11n, even when both are operating in the 2.4 GHz band.

Exam trap

It is a common misconception that newer standards (like 802.11ac) always provide better range. While 802.11ac primarily uses the 5 GHz band which has worse penetration, 802.11ax (Wi-Fi 6) can operate in the 2.4 GHz band and offers superior performance and potentially better effective range than 802.11n due to its advanced signal processing and efficiency improvements.

How to eliminate wrong answers

Option A (802.11ac) is wrong because it operates exclusively in the 5 GHz band, which has higher attenuation and poorer penetration through concrete walls and metal shelving compared to 2.4 GHz, making it unsuitable for maximizing range in a dense obstacle environment. Option B (802.11ax, Wi-Fi 6) is wrong because while it can use both 2.4 GHz and 5 GHz (and optionally 6 GHz with Wi-Fi 6E), its primary design focus is on high-efficiency and throughput in dense deployments, not specifically on maximizing range and penetration; the 2.4 GHz mode of 802.11ax is backward-compatible with 802.11n but does not inherently offer better range than 802.11n for this use case. Option D (802.11a) is wrong because it operates only in the 5 GHz band and uses OFDM without MIMO, resulting in significantly shorter range and poorer obstacle penetration than 802.11n in the 2.4 GHz band.

Full explanation →

395

MCQhard

A company is migrating its fleet of 100 desktops from Windows 10 to Windows 11. The IT department needs to enable TPM 2.0 and Secure Boot on each system via the UEFI. Some older systems have TPM disabled by default. Which UEFI setting must be changed to enable TPM?

A.Enable TPM in the UEFI security settings and set the boot mode to UEFI.

B.Update the UEFI firmware to the latest version from the manufacturer.

C.Disable the integrated graphics to free up resources for TPM.

D.Set the SATA controller to RAID mode.

AnswerA

Enabling TPM in the UEFI security settings is crucial because the Trusted Platform Module, whether discrete or firmware-based, must be explicitly activated to function as a hardware root of trust. Concurrently, setting the boot mode to UEFI is essential, as it supports modern security features like Secure Boot, which often relies on TPM for platform integrity verification, a prerequisite for operating systems like Windows 11.

Why this answer

TPM (Trusted Platform Module) is often disabled by default in the UEFI firmware. It must be enabled in the security settings of the UEFI. Additionally, the system must be set to UEFI mode (not Legacy) with Secure Boot enabled for Windows 11 compatibility.

Full explanation →

396

MCQeasy

A technician is replacing a cracked screen on a smartphone. After removing the old screen, they notice a small, flat, rectangular component with a metal shield is loose near the battery connector. What should they do?

A.Discard it as it is not needed for the screen replacement.

B.Reattach it using double-sided adhesive tape.

C.Solder it back onto the motherboard.

D.Leave it loose; it will not affect screen operation.

AnswerB

Reattaching the battery connector bracket with double-sided adhesive tape is the correct and recommended procedure. This method provides the necessary mechanical stability to secure the battery connector against vibrations and accidental dislodgement without introducing thermal stress or electrical hazards. Many portable electronic devices utilize specialized, thin, and strong adhesives for component retention, making this a standard and appropriate repair technique. It ensures the connector remains firmly seated, preventing intermittent power issues.

Why this answer

The loose component is a battery connector bracket or grounding clip, which is typically secured with adhesive to prevent the battery connector from dislodging. Reattaching it with double-sided adhesive tape restores mechanical stability without soldering, as these parts are not soldered to the motherboard. This ensures reliable power delivery and prevents intermittent shutdowns or charging issues.

Exam trap

CompTIA A+ often tests the misconception that any loose metal component must be soldered back, when in fact many smartphone components are secured with adhesive to avoid heat damage to sensitive battery circuits.

How to eliminate wrong answers

Option A is wrong because discarding the component can lead to loose battery connections, causing power interruptions or device instability. Option C is wrong because these components are not soldered; they are mechanically fastened with adhesive, and soldering could damage the motherboard or short-circuit the battery connector. Option D is wrong because leaving it loose allows the component to shift, potentially shorting nearby contacts or causing the battery connector to detach during use.

Full explanation →

397

MCQmedium

A technician is deploying a cloud-based application that requires a specific operating system and database. The company wants to avoid managing the underlying OS and patches. Which cloud service model should be used?

A.Infrastructure as a Service (IaaS)

B.Platform as a Service (PaaS)

C.Software as a Service (SaaS)

D.Desktop as a Service (DaaS)

AnswerB

Platform as a Service (PaaS) delivers a complete, managed environment for developing, running, and managing applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app. The cloud provider manages the operating system, database, web servers, and programming language execution environment, including all patching and updates. This allows the technician to focus entirely on the application code and data, abstracting away the underlying infrastructure management and patching responsibilities.

Why this answer

PaaS provides a managed platform where the provider handles the operating system, runtime, and patching, while the customer deploys and manages only the application and its data. Since the company wants to avoid managing the OS and patches but still deploy a specific application with a database, PaaS fits exactly. The provider manages the underlying infrastructure and OS layers.

Exam trap

The trap is equating 'cloud-based application' with SaaS; SaaS is for consuming a finished app, whereas deploying your own app while offloading OS management is the defining characteristic of PaaS.

How to eliminate wrong answers

Option A is wrong because IaaS gives the customer control over the OS and requires them to manage patching, which is precisely what the company wants to avoid. Option C is wrong because SaaS delivers a complete, ready-to-use application to end users; the company would not be deploying its own application with a chosen database. Option D is wrong because DaaS provides virtual desktops, which is unrelated to deploying a cloud application with a database.

Full explanation →

398

MCQhard

A network administrator configures a router to use OSPF for dynamic routing between two branch offices. After configuration, routes from one office are not appearing in the other's routing table. Both offices can ping each other's directly connected interfaces. Which protocol issue is most likely preventing route exchange?

A.The routers are using different OSPF area IDs.

B.The routers are using different OSPF process IDs.

C.Multicast is not being forwarded between the routers.

D.The routers have mismatched subnet masks on their interfaces.

AnswerC

OSPF routers primarily use multicast addresses 224.0.0.5 (All OSPF Routers) and 224.0.0.6 (All OSPF DR/BDRs) to send Hello packets for neighbor discovery and to exchange link-state advertisements (LSAs) on broadcast multi-access networks. If multicast traffic is not being forwarded or is being blocked between the routers, they will be unable to discover each other as neighbors or exchange routing information. This directly prevents OSPF from establishing adjacencies and building its routing table.

Why this answer

OSPF uses multicast address 224.0.0.5 (AllSPFRouters) to exchange hello packets and LSAs. If multicast forwarding is disabled or blocked between the routers (e.g., by an ACL, switchport configuration, or lack of multicast routing), OSPF neighbors will not form, and routes will not be exchanged. Since both offices can ping each other's directly connected interfaces, Layer 3 unicast connectivity exists, but OSPF's multicast-based neighbor discovery is failing.

Exam trap

A common mistake is to think that OSPF process IDs must match between routers. The trap here is that candidates overlook the multicast dependency. While ping success eliminates basic Layer 3 connectivity issues like mismatched subnet masks, it does not eliminate OSPF parameter mismatches such as area IDs, which are checked after Hello packets are received.

How to eliminate wrong answers

Option A is wrong because OSPF routers can form neighbors across different area IDs only if the interface belongs to area 0 (backbone) or if a virtual link is configured; mismatched area IDs on the connecting link prevent adjacency, but the question states both offices can ping each other's directly connected interfaces, implying the link is up and OSPF hello packets are not being exchanged due to multicast failure, not area mismatch. Option B is wrong because OSPF process IDs are locally significant and do not need to match between routers; two routers can have different process IDs (e.g., 1 and 100) and still form a neighbor adjacency. Option D is wrong because mismatched subnet masks on the directly connected interfaces would prevent the ping from succeeding (since the routers would consider each other's addresses as not on the same subnet), but the question explicitly states both offices can ping each other's directly connected interfaces, ruling out a subnet mask mismatch.

Full explanation →

399

MCQmedium

A field technician is configuring a ruggedized Windows tablet for a client. The client requires that the tablet automatically connect to a specific Bluetooth headset whenever it is turned on and in range, without user intervention. Which of the following should the technician do to meet this requirement?

A.Configure the headset to be discoverable at all times.

B.Enable Bluetooth tethering on the tablet.

C.Pair the headset and enable the option to automatically connect when in range.

D.Set the headset as the default audio device in the sound settings.

AnswerC

After pairing a Bluetooth device, Windows provides an option to automatically connect when the device is in range. Enabling this setting allows the tablet to establish a connection without user action each time the headset is powered on and nearby. This directly fulfills the requirement for automatic connection and is the standard configuration for such scenarios.

Why this answer

To automatically connect a Bluetooth headset when in range, the device must first be paired, and then the auto-connect option must be enabled in the Bluetooth settings. This ensures the tablet initiates the connection without user interaction. Other settings, such as default audio device or tethering, do not trigger automatic connections and are therefore incorrect.

Exam trap

The trap here is confusing the default audio device setting with automatic connection; the headset must be connected before it can be used as an audio device.

Full explanation →

400

MCQmedium

A technician is configuring a new PC for a user who runs multiple virtual machines. The motherboard has an AM5 socket. Which CPU feature is most important for this workload?

A.High clock speed

B.Large L3 cache

C.High core and thread count

D.Integrated graphics

AnswerC

A high core and thread count is paramount for a PC configured as a virtualization host because it allows the hypervisor to allocate dedicated or shared processing resources to multiple virtual machines concurrently. Each virtual machine typically requires at least one virtual CPU (vCPU), which maps to a physical core or thread. Sufficient cores and threads ensure that all VMs can execute their processes simultaneously without significant performance degradation or resource contention, providing smooth operation for each virtualized environment.

Why this answer

Running multiple virtual machines simultaneously requires the CPU to handle many concurrent instruction streams, as each VM needs its own virtual cores. A high core and thread count allows the hypervisor to assign dedicated logical processors to each VM, preventing resource contention and maintaining performance. High clock speed or cache alone cannot compensate for insufficient parallel execution resources when multiple VMs are active.

Exam trap

The trap here is that candidates often assume high clock speed or large cache is universally best for performance, but for virtualization, parallel core/thread count is the critical factor; the exam tests whether you understand workload-specific CPU requirements.

How to eliminate wrong answers

Option A is wrong because high clock speed benefits single-threaded performance, but VMs are inherently multi-threaded workloads that need parallel execution capacity, not faster individual cores. Option B is wrong because a large L3 cache reduces memory latency for a single workload, but it does not provide the additional execution contexts needed to run multiple VMs concurrently. Option D is wrong because integrated graphics are irrelevant for VM hosting unless the VMs require GPU acceleration, and even then, a discrete GPU or GPU passthrough would be used; the CPU's integrated graphics do not help with general VM workload parallelism.

Full explanation →

401

MCQmedium

A client brings in a desktop that will not power on. The technician verifies the power cord is connected and the PSU fan does not spin when the power button is pressed. What is the most appropriate next step?

A.Replace the motherboard

B.Test the power supply using a PSU tester

C.Reseat the CPU

D.Check the front panel power switch

AnswerB

When a computer exhibits absolutely no signs of power, the power supply unit (PSU) is the most frequent point of failure. A dedicated PSU tester provides an immediate and definitive diagnosis by measuring the voltage output on all critical rails (+3.3V, +5V, +12V, -12V, +5VSB) and verifying the Power Good signal. This tool quickly confirms whether the PSU is delivering correct and stable power within ATX specifications or if it is dead, directly identifying the root cause of the "no power" symptom.

Why this answer

When a desktop shows no power and the PSU fan does not spin despite the cord being connected, the power supply is the prime suspect. Using a PSU tester verifies whether the PSU delivers correct voltages on each rail without risking other components. This is the logical next diagnostic step before replacing any parts.

Exam trap

220-1201 often tests the temptation to jump to motherboard or CPU replacement when a no-power symptom appears — candidates must remember to isolate the PSU first with a tester before replacing any other component.

How to eliminate wrong answers

Option A is wrong because replacing the motherboard is premature — the PSU has not been ruled out, and a dead PSU would produce identical symptoms. Option C is wrong because reseating the CPU would not cause a complete lack of power (no fan spin); CPU issues typically manifest after power-on with POST beeps or no display. Option D is wrong because checking the front panel switch is a valid but secondary check; the technician already pressed the power button and observed no fan spin, so the PSU tester is the more direct diagnostic for a no-power condition.

Full explanation →

402

MCQmedium

A technician is deploying 20 new tablets for a hospital's nursing staff. After configuring Wi-Fi and email, they find that the tablets will not connect to the corporate 5 GHz wireless network, only to the 2.4 GHz network. All tablets are the same model. What is the most likely cause?

A.The 5 GHz SSID is hidden and requires manual entry.

B.The tablets only support 802.11b/g/n on the 2.4 GHz band and lack 5 GHz hardware support.

C.The corporate 5 GHz network requires 802.1X authentication that is not configured on the tablets.

D.The tablets have a defective Wi-Fi antenna.

AnswerB

This is the most plausible explanation. Many budget-friendly tablets are manufactured with only 2.4 GHz Wi-Fi radios (supporting 802.11b/g/n standards) to reduce production costs and extend battery life. If the tablets physically lack the necessary 5 GHz hardware, they cannot detect or connect to any 5 GHz network, regardless of its visibility or security settings. This inherent hardware limitation would uniformly affect all 20 new tablets, preventing them from ever seeing or utilizing the corporate 5 GHz network.

Why this answer

The tablets connect fine to 2.4 GHz but never see or associate with the 5 GHz SSID, which points to a hardware/radio capability limitation rather than a configuration issue. Tablets that only implement 802.11b/g/n are 2.4 GHz-only devices, since 5 GHz operation requires 802.11a/n/ac/ax radios. Because all 20 identical tablets exhibit the same behavior, a per-device defect or per-device config error is unlikely.

Exam trap

220-1201 often tests the misconception that any Wi-Fi connectivity problem is a configuration or authentication issue, when the real cause is a single-band radio lacking 5 GHz hardware support.

How to eliminate wrong answers

Option A is wrong because a hidden SSID can still be joined by manually entering the network name, and hiding an SSID does not prevent the radio from detecting the 5 GHz frequency — the tablets would still associate if they supported the band. Option C is wrong because 802.1X authentication failures produce authentication errors after association, not a complete inability to see or connect to the 5 GHz network; also, 802.1X can be configured on either band. Option D is wrong because a defective antenna in one tablet would not explain all 20 identical units failing identically, and antenna failure typically degrades both bands rather than selectively eliminating 5 GHz.

Full explanation →

403

MCQeasy

During a printer installation, the setup wizard asks for the printer's IP address. The multifunction device is connected via Ethernet and has a static IP. Where can you find the IP address on the printer itself?

A.On the back of the printer near the Ethernet port.

B.By pressing the 'Home' button, then navigating to 'Network Settings' or 'Information'.

C.By looking at the toner cartridge label.

D.By checking the DHCP server logs on the network.

AnswerB

The most direct and common method to ascertain a printer's IP address is through its integrated control panel. By accessing the 'Home' or 'Menu' button, users can navigate through options like 'Network Settings', 'Information', or 'Status' to display current network configurations, including the assigned IPv4 or IPv6 address. This method provides immediate access to the device's active network parameters without requiring external tools or network access.

Why this answer

Multifunction printers with a static IP expose their network configuration through the built-in control panel menu. Pressing the 'Home' button and navigating to 'Network Settings' or an 'Information'/'Reports' section displays the assigned IP address, subnet mask, and gateway directly on the device's LCD. This is the standard method for retrieving network details without needing external tools or documentation.

Exam trap

220-1201 often tests whether candidates confuse physical port locations or consumable labels with actual configuration data sources, so the trap is picking a physical location on the device instead of the software menu that displays network settings.

How to eliminate wrong answers

Option A is wrong because the physical Ethernet port on a printer does not display an IP address — it is just a hardware interface with no configuration data printed on it. Option C is wrong because toner cartridge labels contain part numbers, yields, and compatibility information, not network configuration. Option D is wrong because DHCP server logs would only be relevant if the printer used DHCP; the question states the device has a static IP, so no DHCP lease would exist to look up.

Full explanation →

404

MCQeasy

A small office uses an inkjet printer that has started leaving horizontal white streaks across printed documents. The user has already run the printer's cleaning cycle twice with no improvement. What should the technician do next to resolve this issue?

A.Replace the printer's fuser unit.

B.Replace the ink cartridges with new ones.

C.Manually clean the printhead or replace it.

D.Adjust the paper type setting in the driver to 'photo paper'.

AnswerC

Manually cleaning the printhead or replacing it directly addresses the root cause of persistent print quality issues like banding or missing colors: clogged nozzles. Automated cleaning cycles often use pressure or heat to flush nozzles, but if these fail, manual cleaning with a specialized solution or tools can dislodge stubborn dried ink. If the printhead is severely damaged or irretrievably clogged, replacing the entire printhead assembly is the most effective and direct solution to restore proper ink delivery.

Why this answer

Horizontal white streaks on an inkjet printout that persist after two cleaning cycles typically indicate clogged or damaged printhead nozzles that the automated cleaning cycle cannot clear. Manually cleaning the printhead (using the printer's maintenance utility or physically cleaning with a lint-free swab and distilled water) or replacing the printhead assembly is the correct next step. Ink cartridge replacement is unlikely to help if the cartridge is not empty, and the fuser is a laser-printer component.

Exam trap

220-1201 often tests whether candidates confuse laser printer components (fuser, drum, toner) with inkjet components (printhead, cartridge), so a question about inkjet streaks may tempt them to pick a laser-specific part.

How to eliminate wrong answers

Option A is wrong because a fuser unit is a component of laser printers that melts toner onto paper; inkjet printers do not have fusers, so replacing it is technically impossible. Option B is wrong because replacing ink cartridges addresses low ink or color mixing issues, not persistent nozzle clogs; if the cartridge is not empty, new ink will not clear a blocked printhead. Option D is wrong because paper type settings affect ink absorption and print quality (e.g., smearing, color saturation), not the mechanical delivery of ink through clogged nozzles.

Full explanation →

405

MCQmedium

A user complains that their iOS device's screen brightness automatically dims when using a particular streaming app, but stays normal with other apps. The auto-brightness setting is enabled. What is the most likely reason?

A.The app is using HDR content, which requires lower brightness.

B.The device's ambient light sensor is malfunctioning.

C.The app has its own brightness control that is set to dim.

D.The device is overheating and throttling brightness.

AnswerC

Many media consumption applications, particularly streaming video players, incorporate their own independent brightness controls directly within the app's interface. These in-app settings can override or modify the system-wide brightness configuration, allowing users to adjust the display luminance specifically for that application's content. If this internal app setting is inadvertently set to a lower level, it would cause the screen to appear dim only when that particular app is active, regardless of the iOS device's global brightness setting.

Why this answer

Many streaming apps implement their own brightness control logic, often to optimize video playback or reduce power consumption. When the app's internal brightness setting is configured to dim, it overrides the system's auto-brightness for that specific app, causing the screen to dim only while the app is active. This is a common behavior in apps that manage their own display parameters independently of the iOS system settings.

Exam trap

The 220-1201 exam often tests the distinction between system-level settings (like auto-brightness) and app-specific controls, leading candidates to incorrectly attribute the issue to hardware faults or system-wide problems rather than recognizing that apps can independently manage display brightness.

How to eliminate wrong answers

Option A is wrong because HDR content typically requires higher brightness to display the expanded dynamic range, not lower brightness; the device would increase brightness for HDR playback. Option B is wrong because if the ambient light sensor were malfunctioning, the dimming would occur across all apps and in various lighting conditions, not just within a single streaming app. Option D is wrong because overheating throttling affects the entire device and would cause brightness reduction system-wide, not exclusively within one app, and the user would likely notice other performance issues or warnings.

Full explanation →

406

MCQeasy

A technician is installing a new SSD into a customer's laptop. After removing the bottom cover, they see the existing hard drive is held in place by a metal bracket and a single screw. What is the correct next step?

A.Remove the screw and bracket, then gently lift the drive out of the SATA connector.

B.Pull the drive straight out with force to disconnect it.

C.Use a plastic spudger to pry the drive from the connector.

D.Remove the battery first to avoid electrical shock.

AnswerA

To properly remove an SSD, the first critical step is to disengage any mechanical retention that secures the drive within its bay or slot. This typically involves unscrewing a small retaining screw and then carefully removing a metal bracket. Once the drive is mechanically free, it can then be gently lifted straight out of the SATA data and power connector, ensuring no undue stress is placed on the delicate pins or the connector housing, which prevents damage to both the drive and the motherboard port.

Why this answer

The correct next step is to remove the screw and bracket, then gently lift the drive out of the SATA connector. This is because the metal bracket secures the drive in place, and the SATA connector is a fragile, keyed interface that requires a straight, gentle pull to avoid damaging the pins or the drive's edge connector. Forcing the drive or prying it can bend pins or crack the connector.

Exam trap

The trap here is that candidates may think removing the battery is the mandatory first step for any hardware servicing, but the question specifically asks for the next step to physically remove the drive, which is to release the securing bracket and screw.

How to eliminate wrong answers

Option B is wrong because pulling the drive straight out with force can damage the SATA connector pins or the drive's interface, and the bracket must be removed first to free the drive. Option C is wrong because using a plastic spudger to pry the drive from the connector risks bending the SATA connector pins or cracking the laptop's motherboard, as the connector is not designed for lateral force. Option D is wrong because while removing the battery is a good safety practice to prevent short circuits, it is not the immediate next step required to physically release the drive; the screw and bracket must be addressed first.

Full explanation →

407

MCQmedium

A technician is installing a new network drop in a warehouse where the cable must run near high-voltage machinery. The run is 60 meters. Which type of cable should be used to minimize interference?

A.UTP Cat6 cable.

B.STP Cat6a cable.

C.Coaxial RG-6 cable.

D.Fiber optic cable.

AnswerB

Shielded Twisted Pair (STP) Cat6a cable is the optimal choice for a new network drop in environments prone to electromagnetic interference (EMI). The metallic foil or braid shielding within STP cables effectively blocks external electrical noise, preventing signal degradation and ensuring reliable data transmission. Furthermore, Cat6a supports 10 Gigabit Ethernet over longer distances (up to 100 meters), providing superior performance and future-proofing compared to standard Cat6, making it ideal for demanding installations.

Why this answer

STP Cat6a cable includes a conductive shield that protects against electromagnetic interference (EMI) from nearby high-voltage machinery. The 60-meter run is well within Cat6a's 100-meter maximum segment length, making it the best choice for this environment.

Exam trap

A common pitfall in CompTIA A+ exams is assuming that UTP is always sufficient for Ethernet, but in high-EMI environments like near machinery, shielded cabling (STP) is required. Fiber is also immune but more expensive and harder to terminate, so STP is the best practical choice.

How to eliminate wrong answers

Option A is wrong because UTP Cat6 cable lacks shielding, making it susceptible to EMI from high-voltage machinery, which can cause data corruption or packet loss. Option C is wrong because coaxial RG-6 cable is designed for broadband video and RF signals, not for standard Ethernet networking, and it does not provide the same immunity to EMI as STP in a structured cabling environment. Option D is wrong because fiber optic cable, while immune to EMI, is overkill for a 60-meter run and typically requires more expensive transceivers and termination tools, making it less practical for a simple network drop.

Full explanation →

408

MCQeasy

During a routine hardware upgrade, a technician installs a new graphics card. The system powers on but no display appears. The old card works fine. What UEFI setting should be checked first?

A.Disable Secure Boot

B.Change the primary video adapter from onboard to PCIe

C.Enable CSM (Compatibility Support Module)

D.Update the UEFI firmware to the latest version

AnswerB

Changing the primary video adapter setting in the UEFI/BIOS from the integrated (onboard) graphics to the newly installed PCIe discrete graphics card is the correct solution. This firmware setting explicitly instructs the system to initialize and prioritize the discrete GPU for video output, ensuring that the monitor connected to the new card receives a signal. Many motherboards default to integrated graphics when a new PCIe card is detected, requiring manual configuration to switch the primary display output.

Why this answer

When a new PCIe graphics card is installed but no display appears, the most likely cause is that the UEFI/BIOS is still configured to use the onboard/integrated video adapter as the primary display output. Changing the primary video adapter setting from onboard to PCIe (or PEG) directs the system to initialize and output video from the discrete card. This is a common first check before more invasive troubleshooting.

Exam trap

The trap here is assuming a no-display issue with a new GPU is caused by Secure Boot or firmware version, when the most common cause is the UEFI primary video adapter setting still pointing to onboard graphics.

How to eliminate wrong answers

Option A is wrong because Secure Boot controls which operating system bootloaders and drivers are trusted; it does not determine which video adapter is used for display output, and disabling it would not resolve a no-display issue from a new GPU. Option C is wrong because CSM (Compatibility Support Module) enables legacy BIOS compatibility for older operating systems and devices; it is not the primary setting that selects between onboard and discrete graphics. Option D is wrong because updating UEFI firmware is a troubleshooting step that might be needed for compatibility, but it is not the first setting to check when the old card works and the new card does not display.

Full explanation →

409

MCQmedium

A company deploys a new web server and wants to ensure that data transmitted between clients and the server is encrypted. The technician configures the server to use a certificate. Which protocol should be enabled on the server?

A.HTTPS

B.HTTP

C.FTP

D.SSH

AnswerA

HTTPS (Hypertext Transfer Protocol Secure) is the appropriate protocol for a new web server because it ensures secure, encrypted communication between the client and the server. It leverages Transport Layer Security (TLS) to encrypt data, protecting its confidentiality and integrity from eavesdropping and tampering during transit. Furthermore, HTTPS requires a digital certificate to authenticate the server's identity, establishing trust and verifying that clients are connecting to the legitimate website. This robust security makes it indispensable for any modern web application, especially those handling sensitive user information, and it typically operates over TCP port 443.

Why this answer

HTTPS (Hypertext Transfer Protocol Secure) encrypts data between clients and a web server using TLS/SSL. The certificate you configured on the server is used to establish a trusted, encrypted session, ensuring confidentiality and integrity of transmitted data.

Exam trap

CompTIA A+ often tests the distinction between secure and insecure protocols, and the trap here is that candidates may confuse SSH (used for secure remote shell access) with HTTPS (used for secure web traffic), or think that HTTP with a certificate is sufficient without enabling the encryption layer.

How to eliminate wrong answers

Option B (HTTP) is wrong because it transmits data in plaintext, providing no encryption or security for the data in transit. Option C (FTP) is wrong because it is a file transfer protocol that also sends credentials and data in cleartext by default, and it is not designed for web server client communication. Option D (SSH) is wrong because it is a secure protocol for remote administration and secure file transfer (SFTP), not for serving web pages to clients via a browser.

Full explanation →

410

MCQeasy

A company uses virtual machines for its production environment. A technician needs to perform maintenance on the host server without disrupting the VMs. The technician wants to move the VMs to another host in the cluster while they are running. Which feature must be configured to allow this?

A.Virtual machine snapshots

B.Live migration (vMotion)

C.Virtual switch trunking

D.Resource pooling

AnswerB

Live migration, often implemented as vMotion in VMware environments, is a crucial virtualization technology that allows a running virtual machine to be moved from one physical host to another without any interruption to its operation. This process seamlessly transfers the VM's active memory and CPU state, along with its storage, between hosts. It is precisely what a technician needs to perform maintenance or balance loads on production servers without downtime.

Why this answer

Live migration (vMotion in VMware) moves a running VM from one host to another within a cluster with no downtime and no disruption to the guest OS or its workloads. This is precisely the feature required to perform host maintenance while keeping production VMs running.

Exam trap

The trap is conflating snapshotting or resource pooling with live relocation — candidates pick snapshots thinking they preserve availability, but snapshots do not move workloads off a host.

How to eliminate wrong answers

Option A is wrong because snapshots capture a point-in-time state of a VM's disk for backup or rollback purposes; they do not move the VM to another host. Option C is wrong because virtual switch trunking (VLAN trunking) is a networking configuration that carries multiple VLANs over one uplink; it has nothing to do with relocating VMs between hosts. Option D is wrong because resource pooling describes the aggregate compute/memory/storage capacity shared across a cluster, not the act of migrating a running VM.

Full explanation →

411

MCQhard

A user reports that their new high-resolution monitor (2560x1440) connected via DisplayPort shows intermittent black screens for a few seconds. The monitor works fine at lower resolutions. What is the most likely issue?

A.The monitor's power saving mode is too aggressive

B.The DisplayPort cable is not certified for the required bandwidth

C.The graphics card is overheating

D.The monitor's firmware is outdated

AnswerB

A 2560x1440 resolution, especially at common refresh rates like 60Hz or higher, demands a specific amount of bandwidth from the DisplayPort cable to transmit the video signal reliably. If the cable is an older DisplayPort version (e.g., DP 1.0/1.1) or is of insufficient quality, it may not be certified to handle the required data rate. This bandwidth limitation can lead to intermittent signal loss or dropouts, causing the screen to go black temporarily as the display attempts to re-establish a stable connection.

Why this answer

The most likely issue is that the DisplayPort cable is not certified for the required bandwidth. At 2560x1440 resolution, the monitor requires a high data rate (approximately 7.04 Gbps for 60 Hz), and a non-certified or low-quality cable may not reliably support this bandwidth, causing intermittent signal loss and black screens. Lower resolutions work because they require less bandwidth, allowing the cable to function within its limits.

Exam trap

CompTIA often tests the misconception that intermittent black screens are caused by power saving features or overheating, when in fact the symptom of resolution-dependent failures points directly to cable bandwidth limitations.

How to eliminate wrong answers

Option A is wrong because aggressive power saving mode would typically cause the monitor to enter a low-power state after a period of inactivity, not intermittent black screens specifically at high resolution. Option C is wrong because graphics card overheating usually causes system-wide instability, artifacts, or crashes, not isolated black screens that resolve after a few seconds. Option D is wrong because outdated firmware might cause compatibility issues or missing features, but it would not selectively affect only high-resolution operation while lower resolutions work fine.

Full explanation →

412

MCQhard

A technician is deploying a 3D printer that uses fused deposition modeling (FDM) in a school lab. After several test prints, the prints are warping at the edges and not adhering to the build plate. The filament is PLA, and the build plate is heated. Which adjustment should be made first?

A.Increase the nozzle temperature by 10°C

B.Apply a layer of glue stick to the build plate

C.Adjust the bed leveling or Z-offset to ensure proper first layer height

D.Reduce the print speed

AnswerC

Adjusting the bed leveling or Z-offset to ensure proper first layer height is the most critical step for resolving poor adhesion. Correct bed leveling ensures the build plate is uniformly equidistant from the nozzle across its entire surface, while the Z-offset fine-tunes the nozzle's starting height. Achieving the ideal first layer height, where the filament is slightly compressed onto the bed, maximizes the contact area and promotes strong mechanical bonding, which is essential for preventing prints from detaching.

Why this answer

Adjusting bed leveling or Z-offset to ensure proper first layer height is the correct first step because poor first-layer adhesion is the root cause of edge warping in FDM printing. If the nozzle is too far from the build plate, the extruded filament doesn't get pressed into the surface, resulting in weak adhesion that lets the print lift as it cools. Correcting the first layer height ensures the plastic is properly squished onto the plate, which is the foundation for all subsequent layers.

Exam trap

220-1201 often tests whether candidates jump to temperature or adhesion aids before addressing mechanical calibration — the trap is picking a filament or surface fix when the real issue is first-layer geometry.

How to eliminate wrong answers

Option A is wrong because increasing nozzle temperature by 10°C is a secondary tuning step; PLA already prints well at 200-210°C, and raising it without fixing first-layer height will not solve adhesion and may cause stringing or oozing. Option B is wrong because glue stick is an adhesion aid used after mechanical leveling is confirmed correct; applying it to a poorly leveled bed masks the symptom rather than fixing the root cause. Option D is wrong because reducing print speed affects overall print quality and layer bonding but does not address the fundamental first-layer gap that causes warping.

Full explanation →

413

MCQmedium

A technician is troubleshooting a network where a user's computer cannot obtain an IP address via DHCP. The computer is connected to a switch, and other devices on the same switch work fine. The technician checks the switch and sees that the port is up and the link light is green. What should the technician check next?

A.Replace the Ethernet cable.

B.Check if the switch port is configured with Port Security that is blocking the MAC address.

C.Reboot the DHCP server.

D.Set a static IP address on the computer.

AnswerB

Port Security is a Layer 2 switch feature that restricts input to an interface by limiting and identifying MAC addresses of devices allowed to access the port. If the switch port is configured to allow only a specific MAC address or a limited number of MAC addresses, and the computer's MAC address is not permitted or the limit is exceeded, the switch will block traffic. This prevents the computer from sending its DHCP Discover request, effectively blocking it from obtaining an IP address.

Why this answer

Since the switch port is up and other devices on the same switch obtain IP addresses correctly, the DHCP server and the general network path are functional. The most likely cause is a Layer 2 security feature, such as Port Security, which can be configured to block unknown or specific MAC addresses, preventing the computer from communicating with the DHCP server even though the physical link is active.

Exam trap

The 220-1201 exam often tests the misconception that a green link light guarantees full Layer 2 connectivity, when in fact security features like Port Security can block traffic at the MAC layer while the physical layer remains operational.

How to eliminate wrong answers

Option A is wrong because the link light is green and the port is up, indicating the cable is physically functional; replacing it would be premature without first checking for MAC-level filtering. Option C is wrong because other devices on the same switch are working, proving the DHCP server is operational and reachable. Option D is wrong because setting a static IP address bypasses the troubleshooting process and does not address the root cause of why DHCP fails; it is a workaround, not a diagnostic step.

Full explanation →

414

MCQmedium

A user reports that their laptop's touchpad is not working after they spilt a small amount of coffee on the keyboard. The keyboard still works, but the touchpad cursor does not move. What is the most likely cause?

A.The touchpad driver has been corrupted by the liquid

B.The touchpad has been disabled in the BIOS due to a safety feature

C.The liquid has damaged the touchpad or its ribbon cable

D.The laptop's operating system has detected the liquid and disabled input devices

AnswerC

Liquid spills are highly likely to cause direct physical and electrical damage to sensitive electronic components. For a touchpad, this can involve short-circuiting the capacitive sensor array, corroding the delicate traces on the flexible ribbon cable, or damaging the connector where the cable attaches to the motherboard. Such damage disrupts the electrical signals required for the touchpad's functionality, leading to its failure while other, potentially unaffected components like the keyboard, continue to operate.

Why this answer

Liquid spills cause physical damage — corrosion, short circuits, or residue bridging contacts — most commonly to the touchpad's ribbon cable or the touchpad PCB itself, especially since the touchpad sits directly below the keyboard where the coffee pooled. The keyboard surviving while the touchpad fails is consistent with localized physical damage to the touchpad assembly rather than a software or firmware issue.

Exam trap

The trap is overthinking the failure as a software/driver or BIOS issue when the physical evidence (recent liquid spill, keyboard still working) points directly to hardware damage — candidates who default to 'reinstall the driver' miss the obvious physical cause.

How to eliminate wrong answers

Option A is wrong because liquid does not 'corrupt' a driver — drivers are software stored on disk; liquid damages hardware. Option B is wrong because BIOSes do not have a liquid-detection safety feature that disables the touchpad; some laptops have spill-resistant keyboards but no BIOS auto-disable for touchpads. Option D is wrong because operating systems do not detect liquid and disable input devices; there is no such OS-level liquid sensor integration.

Full explanation →

415

MCQeasy

A user brings in a smartphone with a cracked screen that is still responsive to touch. The device is an older model, and the user wants the screen replaced rather than buying a new phone. After powering off the device and removing the SIM and SD cards, what is the next step in the screen replacement process?

A.Use a spudger to pry the screen off starting from the bottom.

B.Apply heat to the edges of the screen to soften the adhesive.

C.Remove the battery using a plastic pry tool.

D.Insert a guitar pick under the screen to separate it from the frame.

AnswerB

Applying heat to the edges of the screen is the correct initial step because it effectively softens the specialized adhesive used to secure the display assembly to the device's frame. This thermal treatment allows the screen to be carefully lifted with minimal force, significantly reducing the likelihood of causing additional damage to the already cracked glass, the delicate display ribbon cables, or the internal components. It prepares the device for safe and controlled screen removal.

Why this answer

Applying heat to the edges of the screen softens the adhesive that secures the display to the frame, which is a critical step before any prying action. On older smartphone models, the screen is typically bonded with a strong adhesive that can crack the glass further or damage the LCD if pried without softening. This step reduces the risk of breaking the digitizer or LCD during removal.

Exam trap

The 220-1201 exam often tests the misconception that you can immediately pry the screen off with a tool, but the correct sequence requires softening the adhesive first to prevent damage to the display and frame.

How to eliminate wrong answers

Option A is wrong because prying the screen off starting from the bottom without first softening the adhesive can crack the glass or damage the underlying LCD, especially on older models where adhesive is aged and brittle. Option C is wrong because the battery should be removed only after the screen is opened, as the battery is usually located beneath the display assembly and cannot be accessed without first removing the screen. Option D is wrong because inserting a guitar pick under the screen without heating the adhesive first can cause the glass to shatter or the LCD to delaminate, as the pick may catch on uneven adhesive or glass edges.

Full explanation →

416

MCQmedium

A user reports that their laser printer prints fine from Windows, but when they print from a macOS device, the output is garbled with random characters. Both devices are on the same network. What is the most likely cause?

A.The printer's firmware is outdated

B.The network cable is faulty

C.The macOS printer driver is incorrect

D.The printer is set to the wrong emulation mode

AnswerC

The macOS printer driver acts as a crucial interpreter, translating the operating system's generic print commands into the specific printer command language (e.g., PCL, PostScript) that the laser printer understands. If the installed macOS driver or its associated PostScript Printer Description (PPD) file is incorrect or corrupted, it will generate print data that the printer cannot properly process. This misinterpretation results in garbled text or incorrect formatting specifically when printing from macOS, while other OSes with correct drivers print normally.

Why this answer

Garbled output from one OS but not another typically indicates a driver or PPD issue. macOS uses PostScript Printer Description (PPD) files for laser printers, and an incorrect or missing PPD can cause communication errors. Installing the correct driver for macOS resolves the problem.

Full explanation →

417

MCQhard

A company's remote employees use VPN to connect to the office network. Recently, some users report that they can connect to the VPN but cannot browse the internet or access internal servers by name, though they can ping internal IP addresses. The VPN is configured to push DNS settings. Which protocol is likely misconfigured on the VPN server?

A.DHCP

B.DNS

C.IPsec

D.SSL/TLS

AnswerB

DNS (Domain Name System) is the fundamental service for name resolution, translating domain names and hostnames into the IP addresses that computers use to locate resources. When remote employees connect via VPN, the VPN server must push the correct internal DNS server addresses to the client's network adapter. If these DNS settings are incorrect or not properly applied, the client cannot resolve the names of internal company servers, leading to access failures even if the VPN tunnel is otherwise established.

Why this answer

(DNS) because the users can connect to the VPN and ping internal IP addresses, but cannot resolve hostnames to IP addresses. This indicates that the DNS resolution is failing, which is caused by the VPN server not correctly pushing DNS server settings to the VPN clients. Without proper DNS configuration, clients cannot translate domain names (e.g., internal server names or internet URLs) into IP addresses, even though the network layer connectivity (ping to IPs) works.

Exam trap

The trap in this CompTIA A+ question is that candidates often confuse connectivity (ping to IPs works) with full network functionality, and incorrectly assume the issue is with the VPN tunnel encryption (IPsec) or authentication (SSL/TLS), rather than recognizing that name resolution is a separate service that relies on DNS configuration.

How to eliminate wrong answers

Option A (DHCP) is wrong because DHCP is used for automatic IP address assignment, but the users already have connectivity (they can ping IPs), so IP addressing is not the issue. Option C (IPsec) is wrong because IPsec provides encryption and authentication for VPN tunnels; a misconfiguration here would typically cause connection failures or inability to establish the VPN, not name resolution failures after connection. Option D (SSL/TLS) is wrong because SSL/TLS secures the VPN control channel or web traffic; a misconfiguration would prevent the VPN from establishing or cause certificate errors, not affect DNS resolution after the tunnel is up.

Full explanation →

418

MCQmedium

A small business has a single router with four built-in switch ports. They need to connect 12 wired devices. They have a 24-port unmanaged switch. Which configuration will provide the best network performance and connectivity?

A.Connect all 12 devices directly to the router's four ports using splitters.

B.Connect the switch to one of the router's LAN ports, then connect all 12 devices to the switch.

C.Connect half the devices to the router and half to the switch, then connect the switch to the router.

D.Use the router as a switch by disabling its routing functions.

AnswerB

This is the correct and standard method for expanding network capacity. By connecting a multi-port switch to one of the router's LAN ports, the switch effectively extends the local area network. All 12 devices then connect to the switch, forming a star topology where the switch intelligently forwards frames between devices on the local network and routes traffic destined for the internet through the router. This ensures each device receives dedicated bandwidth and avoids collisions, as the switch operates at Layer 2.

Why this answer

Connecting the 24-port unmanaged switch to one of the router's LAN ports extends the network, allowing all 12 devices to connect via the switch. The router handles routing and DHCP, while the switch provides ample ports and wire-speed forwarding at Layer 2, ensuring optimal performance without collisions or bandwidth contention.

Exam trap

The trap here is that candidates may think splitters or daisy-chaining can substitute for a switch, but Ethernet requires a switch or hub to properly regenerate signals and manage multiple connections, and splitters only work for two devices on a single cable run, not for 12 devices.

How to eliminate wrong answers

Option A is wrong because using splitters on a single router port violates Ethernet standards (IEEE 802.3), causing signal degradation, collisions, and no practical connectivity for 12 devices. Option C is wrong because connecting half the devices directly to the router's four ports would exceed the available ports (only 4 built-in switch ports), and the remaining devices on the switch would still work, but this configuration is inefficient and doesn't utilize the router's limited ports properly. Option D is wrong because disabling routing functions on the router does not increase the number of switch ports; the router still has only four built-in switch ports, so it cannot accommodate 12 wired devices.

Full explanation →

419

MCQeasy

A technician is deploying a new workstation in a retail store. After connecting all peripherals and power, the system powers on but the monitor shows 'No Signal'. The monitor is connected via VGA to the motherboard. What should the technician check first?

A.Replace the VGA cable.

B.Reseat the RAM modules.

C.Connect the monitor to the discrete graphics card's video port.

D.Update the motherboard BIOS.

AnswerC

Connecting the monitor to the discrete graphics card's video port is the correct solution because most motherboards automatically disable their integrated graphics output when a discrete graphics card is detected and installed. This behavior ensures that the more powerful discrete GPU becomes the primary video output source. Therefore, connecting the monitor to the integrated graphics port on the motherboard when a discrete card is present will result in a 'No Signal' message, as that port is inactive.

Why this answer

When a discrete graphics card is installed, the motherboard's integrated video (VGA/HDMI on the rear I/O) is typically disabled or deprioritized, so connecting the monitor to the motherboard's VGA port yields 'No Signal' even though the system POSTs fine. The correct first step is to move the monitor cable to the discrete GPU's video output, which is the active display adapter. This is a cabling/port-selection issue, not a hardware failure.

Exam trap

The trap here is assuming 'No Signal' means a broken cable or dead GPU, when the real issue is that the motherboard's video port is disabled by the presence of a discrete card — candidates must check port selection before replacing hardware.

How to eliminate wrong answers

Option A is wrong because replacing the VGA cable does not address the fact that the motherboard VGA port is inactive when a discrete GPU is present — the cable is not the problem. Option B is wrong because loose RAM would cause POST beep codes or a failure to power on, not a clean boot with 'No Signal' on the monitor. Option D is wrong because updating the BIOS is a troubleshooting step of last resort and would not resolve a display routed to the wrong (disabled) video port.

Full explanation →

420

MCQmedium

A technician is selecting a CPU for a compact home theater PC (HTPC) that will be passively cooled. Which CPU characteristic is most critical to ensure reliable operation without a fan?

A.High clock speed

B.Integrated graphics

C.Low TDP

D.Large L3 cache

AnswerC

Low Thermal Design Power (TDP) is crucial for a compact system, especially when passive cooling is desired, because it directly indicates the maximum heat a CPU is expected to generate under typical workloads. A CPU with a low TDP produces less heat, making it significantly easier to dissipate that heat through passive means like a heatsink and chassis without relying on active cooling fans. This allows the CPU to operate safely within thermal limits in confined spaces with limited airflow.

Why this answer

Low TDP (Thermal Design Power) is the most critical characteristic for a passively cooled HTPC because it directly determines how much heat the CPU generates under load. A lower TDP means less heat to dissipate, making it feasible to use a fanless cooler. High clock speed, integrated graphics, and large cache are secondary to thermal management in this scenario.

Exam trap

The trap here is assuming that integrated graphics is the most critical for an HTPC, but the question specifically emphasizes passive cooling, making TDP the key factor.

How to eliminate wrong answers

Option A is wrong because high clock speed increases power consumption and heat output, making passive cooling harder. Option B is wrong because integrated graphics, while useful for HTPC video output, does not directly address the thermal challenge of fanless operation. Option D is wrong because a large L3 cache improves performance but does not reduce heat generation; in fact, larger caches can consume more power.

Full explanation →

421

MCQmedium

A company's IT department is deploying new VoIP phones. After connecting a phone to a PoE switch, the phone does not power on. The switch port is configured for PoE and shows no errors. Which tool should be used to verify that the Ethernet cable delivers power correctly?

A.Cable tester

B.Tone generator

C.Multimeter

D.Wi-Fi analyzer

AnswerC

A digital multimeter (DMM) is a versatile diagnostic tool capable of measuring various electrical properties, including DC voltage. When set to measure DC voltage, it can be used to directly test the power-carrying pairs (typically pins 1,2,3,6 or 4,5,7,8, depending on the PoE standard) of an Ethernet cable. This allows an IT technician to accurately verify if the required 48V DC (or other standard PoE voltage) is present and being delivered to the VoIP phone.

Why this answer

A multimeter is the correct tool because it can measure DC voltage directly on the Ethernet cable's power-carrying pairs (typically pins 4,5 and 7,8 for Mode A or pins 1,2 and 3,6 for Mode B in 802.3af/at PoE). By probing the switch-side pins while the phone is connected, you can verify whether the switch is actually delivering the expected 48V DC, isolating a cable or power issue. This is the only tool among the options that can confirm the presence of voltage.

Exam trap

The trap here is that candidates often choose 'Cable tester' (Option A) because they assume a cable tester can verify PoE delivery, but a standard cable tester only checks continuity and pinout, not voltage or power presence.

How to eliminate wrong answers

Option A is wrong because a cable tester checks for wiring continuity, shorts, and pinouts, but it cannot measure voltage or confirm that PoE power is being delivered. Option B is wrong because a tone generator is used to trace and identify specific cables in a bundle by injecting an audio signal, not to measure electrical power. Option D is wrong because a Wi-Fi analyzer scans for wireless signal strength, channels, and interference, and has no capability to test wired Ethernet power delivery.

Full explanation →

422

MCQeasy

A user complains that their wireless connection drops frequently, but only when they are in the conference room. Other areas of the office have stable connections. What is the most likely cause?

A.The user's laptop has a faulty wireless adapter.

B.The access point is overloaded with too many connections.

C.The conference room has thick walls or electronic interference that weakens the signal.

D.The access point's firmware is outdated.

AnswerC

Location-specific drops point to physical attenuation rather than a device or credential fault. Thick conference-room walls and nearby electronics weaken the radio signal, reducing received strength below usable thresholds only in that area, while open office spaces retain adequate coverage.

Why this answer

The issue is location-specific: the connection drops only in the conference room, while other areas are stable. This strongly points to a local environmental factor, such as thick walls (e.g., concrete or metal) that attenuate the 2.4 GHz or 5 GHz signal, or electronic interference from devices like projectors, fluorescent lights, or microwave ovens. A faulty adapter or overloaded AP would cause problems everywhere, not just in one room.

Exam trap

CompTIA often tests the distinction between a localized environmental issue and a device or network-wide fault, tempting candidates to choose 'overloaded AP' because it sounds plausible, but the key clue is the problem's confinement to one room.

How to eliminate wrong answers

Option A is wrong because a faulty wireless adapter would cause connectivity issues regardless of location, not only in the conference room. Option B is wrong because an overloaded access point would affect all users connected to it, not just one user in a specific room, and the problem is isolated to a single location. Option D is wrong because outdated firmware typically causes systemic issues like intermittent disconnects across the entire AP coverage area, not a location-specific drop.

Full explanation →

423

MCQhard

A network administrator needs to segment traffic between the accounting and HR departments to prevent unauthorized access, while still allowing both to reach the internet. The company uses a single managed switch and a router. Which configuration approach meets these requirements?

A.Create two separate subnets and connect each department to a different physical switch

B.Configure VLANs on the switch and set up a trunk port to the router with subinterfaces

C.Assign static IPs to all devices and enable MAC address filtering on the switch

D.Use a firewall between the two departments and disable inter-VLAN routing

AnswerB

VLANs logically separate accounting and HR broadcast domains on the single switch, and 802.1Q trunking to router subinterfaces provides inter-VLAN routing plus internet access. This satisfies segmentation without extra hardware, since the router enforces policy between subnets.

Why this answer

VLANs logically segment traffic between departments on a single switch, and configuring a trunk port to the router with subinterfaces (using VLAN tagging) allows inter-VLAN routing for internet access while maintaining isolation between the accounting and HR VLANs. This approach meets the requirement of preventing unauthorized access between departments while enabling shared internet connectivity through the router.

Exam trap

The trap here is that candidates may think VLANs alone provide security without considering that inter-VLAN routing must be explicitly configured on the router to enable internet access, or they may confuse MAC address filtering with network segmentation.

How to eliminate wrong answers

Option A is wrong because it requires two separate physical switches, but the scenario specifies a single managed switch, making this approach impossible without additional hardware. Option C is wrong because static IPs and MAC address filtering do not provide network-layer segmentation; they only control access at Layer 2 and can be easily bypassed by spoofing, failing to prevent unauthorized traffic between departments. Option D is wrong because disabling inter-VLAN routing would block all traffic between VLANs, including the required internet access, as the router would not forward packets between subnets; a firewall alone without routing configuration cannot enable internet connectivity for both departments.

Full explanation →

424

MCQeasy

A user wants to print a high-resolution photo on glossy paper using an inkjet printer. After printing, the colors appear washed out and the photo has a grainy appearance. The printer is set to 'normal' quality and 'plain paper' in the driver. What should the technician change to improve the output?

A.Change the paper type to 'glossy photo paper' and the print quality to 'best' or 'photo'.

B.Replace the ink cartridges with high-yield cartridges.

C.Calibrate the printer using the built-in utility.

D.Use a different brand of glossy paper.

AnswerA

Selecting 'glossy photo paper' in the printer driver informs the printer about the media's non-absorbent surface, prompting it to adjust ink droplet size, ink density, and drying time. Concurrently, choosing 'best' or 'photo' quality increases the print resolution (DPI) and the number of print head passes, ensuring finer detail and smoother color transitions essential for a high-resolution photographic output. These combined settings optimize ink application and paper handling for superior image fidelity.

Why this answer

Inkjet print quality is governed primarily by the driver's media type and quality settings, which control ink droplet size, print head passes, and ink volume. Setting the paper type to 'glossy photo paper' tells the driver to use the correct ink formulation and drying profile, while 'best' or 'photo' quality increases resolution and print head passes, eliminating the washed-out, grainy look.

Exam trap

220-1201 often tests whether candidates jump to hardware fixes (cartridges, calibration) when the actual issue is a driver configuration mismatch between media type and quality settings.

How to eliminate wrong answers

Option B is wrong because high-yield cartridges only change ink capacity, not color accuracy or resolution — they don't fix washed-out output. Option C is wrong because calibration addresses alignment and color drift, not the fundamental mismatch between plain-paper settings and glossy media. Option D is wrong because paper brand is not the root cause; the driver settings are.

Full explanation →

425

MCQeasy

A small office is installing new network drops in a drop ceiling for employee workstations. The IT manager wants to minimize future troubleshooting. Which cabling practice should be followed during installation?

A.Use crossover cables for all workstation connections.

B.Run cables parallel to electrical wiring to save space.

C.Label both ends of each cable with a unique identifier.

D.Use flat ribbon cables for all long runs.

AnswerC

Labeling both ends of each network cable with a unique identifier is a fundamental best practice for network installations. This systematic approach significantly streamlines troubleshooting efforts, as technicians can quickly identify the source and destination of any given cable without extensive tracing. Furthermore, proper labeling simplifies future network modifications, expansions, and maintenance tasks, reducing downtime and the potential for errors in complex or high-density cabling environments.

Why this answer

Labeling both ends of each cable with a unique identifier is a best practice for cable management that directly reduces troubleshooting time. When a cable fault occurs or a move/add/change is needed, technicians can quickly trace the cable from the patch panel to the workstation jack without tone-and-probe testing, minimizing downtime. This practice aligns with TIA/EIA-606-A labeling standards for administration of telecommunications infrastructure.

Exam trap

A common misconception is that crossover cables are required for workstation-to-switch connections, but modern switches use Auto-MDIX to automatically correct the cable type. The real key to minimizing future troubleshooting is proper labeling—so that each cable can be traced from patch panel to jack quickly, without needing tone-and-probe testing.

How to eliminate wrong answers

Option A is wrong because crossover cables are used to connect two like devices (e.g., two switches or two PCs) directly, not for standard workstation-to-switch connections, which require straight-through cables per T568A/T568B wiring. Option B is wrong because running cables parallel to electrical wiring induces electromagnetic interference (EMI) that can corrupt data signals, violating best practices for separation (typically 12 inches for non-shielded cabling). Option D is wrong because flat ribbon cables are not rated for in-wall installation and lack the twist pairs needed to cancel crosstalk, making them unsuitable for long runs in a structured cabling environment.

Full explanation →

426

MCQhard

A company's network uses a managed switch with VLANs. Users in VLAN 10 can ping the default gateway but cannot communicate with users in VLAN 20. The switch is connected to a router that handles inter-VLAN routing. What is the most likely misconfiguration?

A.The router's firewall is blocking traffic between VLANs.

B.The switch port connecting to the router is configured as an access port instead of a trunk.

C.The default gateway for VLAN 20 is misconfigured.

D.The switch has Spanning Tree Protocol enabled, blocking the link.

AnswerB

An access port is designed to carry traffic for a single, untagged VLAN, typically connecting to an end device like a PC. For a router to perform inter-VLAN routing, it must receive traffic from multiple VLANs over a single physical link. This requires the switch port connected to the router to be configured as a trunk port, which tags Ethernet frames with their respective VLAN IDs (e.g., 802.1Q) allowing the router to differentiate and route traffic between them. If it's an access port, the router only sees traffic for that single configured VLAN, preventing communication with other VLANs.

Why this answer

The most likely misconfiguration is that the switch port connecting to the router is configured as an access port instead of a trunk. For inter-VLAN routing to work, the router must receive traffic from multiple VLANs on the same physical interface. A trunk port (using 802.1Q tagging) allows frames from VLAN 10 and VLAN 20 to be forwarded to the router, which then routes between them.

An access port can only carry traffic for a single VLAN, so frames from VLAN 20 would be dropped or misdirected, preventing communication.

Exam trap

The 220-1201 exam often tests the misconception that inter-VLAN routing can work with an access port if the router's interface is configured with an IP address, but the trap is that an access port strips VLAN tags, so the router cannot differentiate between VLANs, breaking communication.

How to eliminate wrong answers

Option A is wrong because a router's firewall typically operates at Layer 3 or above and would not selectively block traffic between VLANs unless explicitly configured with an ACL; the scenario describes a connectivity issue, not a security block. Option C is wrong because users in VLAN 10 can ping the default gateway, indicating the gateway is reachable; a misconfigured default gateway for VLAN 20 would affect its ability to reach external networks, not communication between VLANs on the same router. Option D is wrong because Spanning Tree Protocol (STP) prevents loops by blocking redundant links, but it does not block a single link between the switch and router unless there is a loop; STP would not cause a complete failure of inter-VLAN communication on a correctly configured trunk.

Full explanation →

427

MCQmedium

A user's laptop has a USB-C port that supports Thunderbolt 3. They want to connect two 4K monitors daisy-chained. The monitors have DisplayPort inputs. Which cable configuration is required?

A.Connect both monitors directly to the laptop using two separate USB-C to HDMI cables.

B.Use a USB-C to DisplayPort cable from the laptop to the first monitor, then a DisplayPort cable from the first monitor to the second.

C.Use a USB-C hub with two HDMI ports.

D.Use a single USB-C to DisplayPort cable that splits into two DisplayPort connectors.

AnswerB

This option correctly describes a DisplayPort Multi-Stream Transport (MST) daisy-chain configuration, which is the standard method for connecting multiple monitors to a single video output port, such as a USB-C port utilizing DisplayPort Alternate Mode. The USB-C port outputs a DisplayPort signal to the first monitor, which then uses its DisplayPort output to forward the signal to the second monitor, allowing for extended desktop functionality across both displays. This setup requires both monitors to support DisplayPort MST.

Why this answer

Thunderbolt 3 over USB-C supports DisplayPort daisy-chaining (Multi-Stream Transport, MST). A USB-C to DisplayPort cable from the laptop to the first monitor carries the video signal, and a standard DisplayPort cable from the first monitor's DisplayPort out to the second monitor's DisplayPort in completes the chain. This configuration leverages the MST capability inherent in Thunderbolt 3 and DisplayPort 1.2 or later, allowing two 4K monitors to be driven from a single port.

Exam trap

A common misconception is that a simple splitter cable (Option D) can drive two independent displays, when in fact MST requires active daisy-chaining or a hub with MST support, not a passive Y-cable.

How to eliminate wrong answers

Option A is wrong because connecting both monitors directly to the laptop using two separate USB-C to HDMI cables would require two USB-C ports on the laptop, but the question specifies a single USB-C port that supports Thunderbolt 3; daisy-chaining is not achieved, and HDMI does not natively support MST daisy-chaining. Option C is wrong because a USB-C hub with two HDMI ports would split the single Thunderbolt 3 connection into two separate video outputs, but this does not create a daisy-chain; it uses a hub, which is a different topology and may not support two 4K monitors at full resolution depending on the hub's capabilities. Option D is wrong because a single USB-C to DisplayPort cable that splits into two DisplayPort connectors is a passive splitter, which does not support MST; it would either duplicate the same signal or fail to drive two independent 4K displays, as MST requires active signal handling and proper daisy-chain support.

Full explanation →

428

MCQhard

A technician is troubleshooting a laptop that connects to a Wi-Fi network but gets a 'No Internet, Secured' message. The laptop has a static IP address configured. What is the most likely issue?

A.The Wi-Fi network's SSID is hidden.

B.The laptop's static IP address is not in the same subnet as the router.

C.The laptop's Wi-Fi driver is corrupted.

D.The router's DHCP server is disabled.

AnswerB

If a laptop's statically configured IP address falls outside the router's local subnet, the laptop will be unable to locate or communicate with the router, which serves as its default gateway. This prevents the laptop from routing traffic beyond its local network segment, effectively blocking all internet access. While the laptop might appear connected to the Wi-Fi, it cannot reach external resources.

Why this answer

A static IP address that is not in the same subnet as the router prevents the laptop from communicating with the default gateway. Even though the Wi-Fi association succeeds (hence 'Secured'), the laptop cannot route traffic to the internet because it cannot reach the router's IP address. This mismatch causes the 'No Internet' message while the link-layer connection remains intact.

Exam trap

The 220-1201 exam often tests the misconception that 'No Internet, Secured' always points to a DHCP or DNS issue, but here the static IP mismatch is the root cause because the laptop cannot reach the gateway despite a successful layer-2 connection.

How to eliminate wrong answers

Option A is wrong because a hidden SSID does not affect IP configuration; the laptop can still obtain a valid IP via DHCP or static assignment and access the internet once connected. Option C is wrong because a corrupted Wi-Fi driver would typically prevent association or cause frequent disconnections, not allow a successful connection with a 'Secured' status. Option D is wrong because the laptop is using a static IP address, so the router's DHCP server being disabled has no impact on its IP configuration; the issue lies in the static IP not matching the subnet.

Full explanation →

429

MCQhard

A company's file server uses a RAID 5 array with five 2 TB HDDs. After a power outage, the server boots but the RAID array is shown as 'Failed' in the controller utility. The drives are all detected. What is the most likely cause and the best first step to recover the array with minimal data loss?

A.Replace all five drives and restore from backup.

B.Initialize the array to clear the failed status.

C.Check the RAID controller's event log and attempt to import the array.

D.Reseat all SATA cables and power connectors.

AnswerC

Checking the RAID controller's event log is the crucial first diagnostic step, as it provides specific details about which drives have failed or if the array configuration itself has become corrupted or lost. If the configuration is lost but the drives are intact, attempting to import the array can re-read the existing metadata from the drives and restore the array's operational status without data loss. This approach prioritizes diagnosis and non-destructive recovery.

Why this answer

The most likely cause is that the RAID controller lost its configuration metadata during the power outage, so it no longer recognizes the array as valid even though all drives are physically detected. The correct first step is to check the controller's event log to confirm the failure reason and then use the controller's 'import foreign configuration' or equivalent feature to re-associate the existing drives with the array without destroying data. Initializing or rebuilding would overwrite the array metadata and cause data loss, so importing is the safest recovery path.

Exam trap

The trap here is assuming that a 'Failed' RAID status always means disk failure and that the only fix is to rebuild or restore from backup, when in fact a power loss often causes a controller metadata issue that can be resolved by importing the foreign configuration.

How to eliminate wrong answers

Option A is wrong because replacing all drives and restoring from backup is unnecessary and destructive when the drives are detected and the data is likely intact; it also assumes a backup exists and ignores the possibility of a simple metadata recovery. Option B is wrong because initializing the array writes new metadata and destroys the existing RAID configuration and data, turning a recoverable situation into permanent data loss. Option D is wrong because reseating cables addresses physical connectivity issues, but the drives are already detected, so the problem is logical (controller configuration) rather than physical.

Full explanation →

430

MCQmedium

A technician is troubleshooting a tablet that has a dim display that flickers intermittently. The device responds to touch and the OS loads normally. Which component is most likely failing?

A.The digitizer is malfunctioning.

B.The LCD panel has dead pixels.

C.The backlight LED or inverter is failing.

D.The motherboard GPU is damaged.

AnswerC

The backlight LED array or its associated inverter/driver circuit is crucial for illuminating the liquid crystal display (LCD) panel, as LCDs do not produce their own light. When this component begins to fail, it commonly manifests as a dim screen, noticeable flickering, or intermittent display output because the illumination source is unstable or insufficient. Since the operating system and touch functionality are reported as normal, the issue is isolated to the display's illumination system rather than its data processing or input.

Why this answer

The backlight LED or inverter is the most likely failing component because the display is dim but still functional (the LCD panel itself works, as the OS loads and touch responds). A failing backlight reduces brightness and can cause flickering due to inconsistent power delivery to the LEDs, while the digitizer and GPU remain operational.

Exam trap

The 220-1201 exam often tests the distinction between the display panel (LCD) and the backlight system, trapping candidates who confuse a dim/flickering screen with a failing LCD panel or GPU when the underlying issue is a power supply component for illumination.

How to eliminate wrong answers

Option A is wrong because the digitizer is responsible for touch input, and the device responds to touch normally, indicating the digitizer is functioning. Option B is wrong because dead pixels are static, non-flickering defects that do not cause overall dimness or intermittent flickering. Option D is wrong because a damaged motherboard GPU would typically cause graphical artifacts, screen corruption, or failure to boot, not a dim display with normal OS loading and touch response.

Full explanation →

431

MCQmedium

A user reports that their fiber-to-the-home (FTTH) internet connection works but is slower than expected. The technician finds that the ONT (Optical Network Terminal) is connected to the router via a 100-meter Cat5e cable. What is the most likely issue?

A.The ONT is malfunctioning.

B.The Cat5e cable is too long for 1 Gbps.

C.The router is not configured for the correct speed.

D.The Ethernet cable is damaged or has a bad termination.

AnswerD

A damaged Ethernet cable, such as one with kinks, nicks, or internal wire breaks, or a cable with improperly terminated RJ-45 connectors (e.g., incorrect wire pairing, loose pins), can introduce significant signal integrity issues. These flaws lead to increased packet loss, retransmissions, and ultimately a drastic reduction in effective throughput, even when the link lights indicate an active connection, manifesting as a slow internet experience.

Why this answer

The most likely issue is a damaged or poorly terminated Cat5e cable. A 100-meter Cat5e cable is within the maximum length specification for 1 Gbps (100 meters), so the length alone is not the problem. However, a damaged cable or bad termination can cause excessive packet loss, CRC errors, or auto-negotiation failures, resulting in slower throughput even though the link appears to be up.

Exam trap

The trap here is that candidates assume a 100-meter Cat5e cable exceeds the maximum length for 1 Gbps, when in fact Cat5e supports 1 Gbps up to exactly 100 meters, so the length is not the problem—the cable condition or termination is the more likely culprit.

How to eliminate wrong answers

Option A is wrong because the ONT is functioning (the connection works), and a malfunctioning ONT would typically cause a complete loss of connectivity or intermittent drops, not just slower speeds. Option B is wrong because Cat5e is rated for 1 Gbps up to 100 meters; 100 meters is the maximum allowed length, so it is not 'too long' and should support full speed if the cable is in good condition. Option C is wrong because the router's speed configuration is unlikely to be the issue—most routers auto-negotiate speed with the ONT, and a mismatch would typically result in a link at a lower speed (e.g., 100 Mbps) rather than a general 'slower than expected' performance.

Full explanation →

432

MCQhard

A technician is setting up a new Android tablet for a point-of-sale system. The tablet must stay on and connected to Wi-Fi at all times, even when the screen is off. Which setting should the technician adjust?

A.Disable the 'Adaptive battery' feature.

B.Set the screen timeout to 'Never'.

C.Configure 'Keep Wi-Fi on during sleep' to 'Always'.

D.Enable 'Developer options' and set 'Stay awake'.

AnswerC

This setting directly instructs the Android operating system to keep the Wi-Fi radio powered on and connected to the network even when the device's screen is off and it enters a sleep or idle state. By configuring 'Keep Wi-Fi on during sleep' to 'Always', background applications can continue to receive data, sync information, and deliver notifications without interruption. This is the precise and most power-efficient method to ensure continuous Wi-Fi connectivity during device sleep.

Why this answer

The 'Keep Wi-Fi on during sleep' setting, when configured to 'Always', ensures the Wi-Fi radio remains active even when the screen is off. This is essential for a point-of-sale (POS) tablet that must maintain a constant network connection for transaction processing, regardless of the device's sleep state.

Exam trap

The trap here is that candidates often confuse 'screen timeout' with 'network connectivity' and select Option B, not realizing that keeping the screen on is unnecessary and wasteful, whereas the correct setting directly controls the Wi-Fi radio's behavior during sleep.

How to eliminate wrong answers

Option A is wrong because disabling 'Adaptive battery' only prevents the system from limiting background activity for rarely used apps; it does not control Wi-Fi behavior during sleep. Option B is wrong because setting the screen timeout to 'Never' keeps the display perpetually on, which drains battery unnecessarily and is not required for maintaining Wi-Fi connectivity. Option D is wrong because enabling 'Stay awake' in Developer options only prevents the device from sleeping while charging via USB/ADB; it does not affect Wi-Fi behavior during sleep when not connected to a charger.

Full explanation →

433

MCQhard

A technician is tasked with building a high-performance workstation for a data scientist who uses large datasets. The workstation has a motherboard that supports quad-channel memory. The technician has four 16 GB DDR4-3200 modules. Which configuration will yield the best memory performance?

A.Install all four modules in the same channel (e.g., slots 1, 2, 3, 4) to maximize density.

B.Install two modules in one channel and two in another, leaving the other two channels empty.

C.Install one module in each of the four channels (e.g., slots 1, 3, 5, 7) to enable quad-channel mode.

D.Install all four modules in the same slot using a special adapter.

AnswerC

To enable quad-channel mode, the correct approach is to install one memory module into each of the four available memory channels. This typically involves populating specific slots, often indicated by matching colors or motherboard manual guidance (e.g., slots 1, 3, 5, 7 or A1, B1, C1, D1). By distributing the modules across all channels, the CPU's integrated memory controller can simultaneously access data from four independent pathways, maximizing memory bandwidth and significantly boosting the workstation's performance for demanding applications.

Why this answer

Quad-channel memory architecture requires that all four memory channels be populated with identical modules to achieve maximum bandwidth. Installing one module per channel (e.g., in slots 1, 3, 5, 7 or the designated quad-channel slots) allows the memory controller to access all four channels simultaneously, quadrupling the data transfer rate compared to single-channel. Using fewer modules or mismatched sizes would reduce the channel count or cause the system to run in a lower-channel mode.

Full explanation →

434

MCQeasy

A user reports that their laptop battery no longer charges and the system only runs when plugged in. You test the AC adapter and it outputs correct voltage. Inside the battery, which component is most likely failed?

A.The lithium-ion cells have degraded.

B.The battery management system (BMS) is faulty.

C.The DC jack on the laptop is loose.

D.The laptop's motherboard charging circuit is damaged.

AnswerB

The BMS governs charging, cell balancing and communication with the laptop. With the adapter verified as supplying correct voltage, a failed BMS blocks charge current and reporting, leaving the system running solely on adapter power.

Why this answer

The battery management system (BMS) is the circuit board inside the battery pack that controls charging, monitors cell voltage and temperature, and communicates with the laptop. Since the AC adapter outputs correct voltage and the laptop runs on AC power, the BMS is the most likely failed component because it can prevent charging even if the lithium-ion cells are healthy. A faulty BMS may stop communicating with the laptop's embedded controller, causing the system to treat the battery as absent or non-functional.

Exam trap

The 220-1201 exam often tests the misconception that battery failure always means the cells are dead, but the trap here is that the BMS can fail independently and prevent charging while the cells remain functional, especially when the AC adapter and laptop power path are verified working.

How to eliminate wrong answers

Option A is wrong because degraded lithium-ion cells would typically cause reduced runtime or inability to hold a charge, but the system would still attempt to charge them; the reported symptom of no charging at all points to a control or communication failure, not cell degradation. Option C is wrong because a loose DC jack would cause intermittent power or no power at all to the laptop, but the user reports the system runs when plugged in, indicating the DC jack is making proper contact. Option D is wrong because a damaged motherboard charging circuit would likely prevent the laptop from running on AC power or cause erratic behavior, but the system operates normally on AC, localizing the fault to the battery assembly itself.

Full explanation →

435

MCQmedium

A technician is tasked with setting up a RAID 10 array using four 500 GB HDDs for a database server. After configuration, the total capacity shown is 1 TB instead of the expected 1.5 TB. What is the most likely cause?

A.One of the drives is only 250 GB.

B.The array was accidentally configured as RAID 0.

C.The array is configured correctly; RAID 10 provides 1 TB usable.

D.The controller is using a different stripe size.

AnswerC

The array is indeed configured correctly for RAID 10 (RAID 1+0). This nested RAID level combines mirroring (RAID 1) for redundancy with striping (RAID 0) for performance. With four 500 GB drives, two mirrored pairs are created, each providing 500 GB of usable space. These two 500 GB logical volumes are then striped together, resulting in a total usable capacity of 1 TB.

Why this answer

RAID 10 combines mirroring and striping, requiring a minimum of four drives. With four 500 GB drives, the array is typically organized as two mirrored pairs (each pair 500 GB usable) and then striped together, yielding a total usable capacity of 1 TB (2 × 500 GB). The expected 1.5 TB is incorrect because RAID 10 does not provide 75% of raw capacity; it provides 50% due to mirroring.

Thus, the 1 TB shown is correct.

Exam trap

The trap here is assuming RAID 10 provides 75% usable capacity like RAID 5, when it actually provides 50% due to mirroring.

How to eliminate wrong answers

Option A is wrong because if one drive were 250 GB, the total raw capacity would be 1.75 TB, but RAID 10 usable capacity would still be limited by the smallest drive in each mirror pair, potentially reducing capacity further, not increasing it to 1.5 TB. Option B is wrong because RAID 0 would provide the full raw capacity of 2 TB (4 × 500 GB), not 1 TB. Option D is wrong because stripe size affects performance and I/O distribution, not total usable capacity; capacity is determined by RAID level and drive sizes.

Full explanation →

436

MCQhard

A user reports that their laptop screen suddenly went black, but the laptop is still powered on (fans running, power light on). Connecting an external monitor shows the desktop correctly. What is the most likely cause?

A.The graphics driver has crashed and needs to be reinstalled.

B.The laptop's LCD inverter or backlight has failed.

C.The Windows display settings are set to 'Show only on external display'.

D.The laptop's RAM is faulty and causing video output issues.

AnswerB

A failure of the LCD inverter or the backlight itself is a common cause for a laptop screen to suddenly go black while the system remains operational. The backlight provides the illumination for the LCD panel, and without it, the screen appears completely dark, even though the image data might still be generated. Connecting an external monitor bypasses the internal display's backlight and inverter circuitry, relying instead on the laptop's video output port and the external monitor's own power and display components, thus confirming the internal display's specific hardware failure.

Why this answer

The external display working normally indicates the GPU and OS are functional. The black built-in display points to a failure in the LCD panel, backlight, or the display cable (e.g., LVDS/eDP ribbon cable) connecting the motherboard to the screen. A loose or damaged internal cable is a common cause, especially in laptops that have been moved frequently.

Full explanation →

437

MCQeasy

A user reports that their VoIP phone works but the PC connected to the phone's passthrough port has no network access. What should the technician check first?

A.The PC's IP configuration.

B.The Ethernet cable between the phone and the PC.

C.The VoIP phone's firmware version.

D.The switch port the phone is connected to.

AnswerB

VoIP phones often include a passthrough Ethernet port, allowing a single wall jack to serve both the phone and a connected PC. If the phone itself is operational, its connection to the network switch is functional. However, the PC relies on a separate Ethernet cable connecting its network interface card to the phone's passthrough port to receive network access. A faulty or disconnected cable in this specific segment would directly explain why the PC has no network connectivity while the phone continues to work.

Why this answer

This question tests understanding of VoIP passthrough ports. The PC's lack of connectivity is often due to a faulty or unseated Ethernet cable between the phone and PC. The phone itself is working, so the upstream connection is fine.

Full explanation →

438

MCQmedium

During a routine check, a technician finds that a RAID 0 array with two SSDs is no longer bootable. The BIOS detects both SSDs individually but the array is missing from the RAID controller. What is the most likely issue?

A.One of the SSDs has failed completely.

B.The RAID controller has failed.

C.The RAID metadata has been corrupted.

D.The SATA cables are swapped.

AnswerC

RAID metadata, which is stored on the drives themselves, contains critical configuration information such as the array type, stripe size, drive order, and parity data. If this metadata becomes corrupted due to a sudden power loss, a controller glitch, or a bad sector, the RAID controller can still detect the physical presence of the individual drives. However, without valid metadata, the controller cannot reconstruct or recognize the logical RAID volume, causing the array to appear unconfigured or "missing" even though the drives are physically present and detected.

Why this answer

RAID 0 has no redundancy — it stripes data across both SSDs. If the RAID metadata (stored on the drives or controller) is corrupted, the controller cannot reconstruct the array, even though both SSDs are physically detected by BIOS. The array disappears from the RAID controller because the metadata that defines the stripe configuration is unreadable.

Exam trap

The trap is assuming that because both drives are detected, the array must be fine. Candidates must understand that RAID metadata corruption can make the array invisible even when all physical drives are healthy.

How to eliminate wrong answers

Option A is wrong because if one SSD had failed completely, the BIOS would not detect it individually — the question states both SSDs are detected. Option B is wrong because if the RAID controller failed, neither SSD would be visible through the controller, and the array would not appear at all (the question says BIOS detects both drives individually, implying the controller is functional). Option D is wrong because swapped SATA cables would not cause the array to disappear — the controller would still see both drives, just possibly in different ports, and RAID metadata is stored on the drives, not tied to port order.

Full explanation →

439

MCQeasy

A user reports that their laptop can connect to the internet via Ethernet but cannot connect to any Wi-Fi networks. The wireless adapter is enabled and shows available networks, but connecting always fails. What is the most likely cause?

A.The DHCP server is out of IP addresses.

B.The wireless adapter driver is corrupted.

C.The wireless security settings are incorrect.

D.The router’s SSID is hidden.

AnswerC

When a user can see available wireless networks but consistently fails to establish a connection, it strongly suggests a mismatch in the security parameters. This includes an incorrect pre-shared key (password), an incompatible encryption type (e.g., WPA2 vs. WPA3), or an incorrect authentication method. The wireless adapter successfully identifies the network's SSID but cannot complete the authentication handshake required to join the network and obtain an IP address.

Why this answer

When a wireless adapter is enabled and can see available networks but every connection attempt fails, the most likely cause is a mismatch in wireless security settings — such as an incorrect WPA2/WPA3 passphrase, wrong encryption type (TKIP vs AES), or mismatched authentication method. The adapter and driver are functioning (networks are visible), and Ethernet works, ruling out broader network issues.

Exam trap

220-1201 often tests the distinction between 'adapter can't see networks' (driver/hardware) versus 'adapter sees networks but can't connect' (security/authentication) — candidates who pick driver corruption miss that the adapter is clearly functional.

How to eliminate wrong answers

Option A is wrong because a DHCP exhaustion would affect Ethernet-connected clients too, and the user's Ethernet connection works fine. Option B is wrong because a corrupted driver would typically prevent the adapter from showing available networks or functioning at all, not just fail on association. Option D is wrong because a hidden SSID would prevent the network from appearing in the list, but the user sees available networks and can attempt to connect — hidden SSIDs can still be joined manually if the security settings are correct.

Full explanation →

440

MCQeasy

A customer reports that their new laptop can connect to websites using IP addresses but cannot resolve domain names like 'www.example.com'. Which networking tool should be used to verify the DNS server configuration on the laptop?

A.ping 8.8.8.8

B.ipconfig /all

C.nslookup www.example.com

D.tracert 8.8.8.8

AnswerB

ipconfig /all displays the laptop's configured DNS servers alongside IP address, subnet mask and gateway. Comparing those entries against the expected DNS addresses verifies whether misconfiguration prevents domain name resolution while direct IP connectivity still works.

Why this answer

The ipconfig /all command displays the full TCP/IP configuration, including the DNS server addresses assigned to the laptop's network adapter. Since the user can reach websites by IP address but not by domain name, the issue is likely with DNS resolution; ipconfig /all allows verification of whether the DNS server is correctly configured or pointing to an unreachable server.

Exam trap

CompTIA often tests the distinction between testing DNS resolution (nslookup) and verifying DNS configuration (ipconfig /all), trapping candidates who confuse the symptom-checking tool with the configuration-verification tool.

How to eliminate wrong answers

Option A is wrong because ping 8.8.8.8 tests basic IP connectivity to a public DNS server, but it does not display or verify the laptop's DNS server configuration. Option C is wrong because nslookup www.example.com tests DNS resolution itself; if DNS is misconfigured, nslookup will fail, but it does not show the current DNS server settings configured on the laptop. Option D is wrong because tracert 8.8.8.8 traces the route to an IP address, which tests network path connectivity but provides no information about the DNS server configuration.

Full explanation →

441

MCQmedium

A company's multifunction printer supports faxing over VoIP. Users report that faxes are frequently incomplete or fail to send. The fax line is connected to an analog telephone adapter (ATA). What should you check first?

A.Replace the fax modem card in the printer.

B.Check the ATA's configuration to ensure T.38 fax relay is enabled.

C.Increase the printer's print resolution.

D.Disable the printer's firewall.

AnswerB

Checking the ATA's configuration to ensure T.38 fax relay is enabled is the correct troubleshooting step because T.38 is the industry standard protocol specifically designed for reliable fax transmission over IP networks. Standard voice codecs (like G.711) are prone to packet loss, jitter, and compression artifacts that corrupt sensitive fax tones during VoIP transmission. T.38 mitigates these issues by converting fax tones into a robust data stream, ensuring successful and error-free fax over IP (FoIP) operations.

Why this answer

Fax over VoIP is sensitive to jitter and latency. The ATA's settings for fax passthrough (T.38) must be enabled and properly configured. Without T.38, fax data may be corrupted by voice codecs.

Full explanation →

442

MCQeasy

A small business owner wants to connect five computers in a single office so they can share files and a printer without purchasing a server. Which network type should be configured?

A.Client-server network

B.Peer-to-peer network

C.Wide area network (WAN)

D.Metropolitan area network (MAN)

AnswerB

A peer-to-peer network configuration allows each connected computer to function as both a client and a server, directly sharing resources like files, folders, and printers with other devices on the network without requiring a dedicated central server. This model is ideal for small office environments, such as one with five computers, due to its simplicity, ease of setup, and cost-effectiveness, as it avoids the expense and complexity of server hardware and administration.

Why this answer

A peer-to-peer network (B) is the correct choice because it allows five computers to share files and a printer directly without a dedicated server. Each computer acts as both a client and a server, making it ideal for small offices with fewer than 10 devices where centralized management is unnecessary.

Exam trap

CompTIA often tests the misconception that a client-server network is always required for resource sharing, but the trap here is that peer-to-peer is sufficient and cost-effective for small groups without a dedicated server.

How to eliminate wrong answers

Option A is wrong because a client-server network requires a dedicated server to manage resources, which contradicts the requirement of not purchasing a server. Option C is wrong because a wide area network (WAN) spans large geographic areas (e.g., cities or countries) and is not designed for a single office LAN. Option D is wrong because a metropolitan area network (MAN) covers a city-sized area and is overkill for connecting five computers in one room.

Full explanation →

443

MCQmedium

You are building a workstation for video editing and need to install a dedicated GPU in the primary PCIe x16 slot. After installation, the system boots but the GPU is not detected in Device Manager. The GPU works fine in another PC. What should you check on the motherboard?

A.The PCIe slot's power delivery from the PSU

B.The motherboard's BIOS setting for the PCIe slot

C.The CMOS battery voltage

D.The CPU fan header

AnswerB

Motherboard BIOS/UEFI firmware provides critical configuration options that directly control the operation and detection of PCIe slots. A specific PCIe slot might be manually disabled within the BIOS, or its PCIe generation (e.g., Gen3, Gen4, Gen5) could be incorrectly configured, leading to compatibility issues or complete non-detection of an installed device. Checking and adjusting these firmware settings is a fundamental and often necessary troubleshooting step when a PCIe device, such as a video editing GPU, is not recognized by the system.

Why this answer

If a known-good GPU is not detected in Device Manager when installed in the primary PCIe x16 slot, the most likely motherboard-side cause is a BIOS/UEFI configuration issue — such as the slot being disabled, the primary display adapter set to iGPU, or PCIe bifurcation/lane assignment misconfigured. The GPU itself is proven working in another PC, so the fault lies in how the motherboard is presenting or enabling that slot. Checking the BIOS setting for the PCIe slot is the correct next step.

Exam trap

The trap is focusing on power or physical seating when the GPU is already proven functional elsewhere — candidates must recognize that a working card in a non-detecting slot points to BIOS/configuration, not hardware failure.

How to eliminate wrong answers

Option A is wrong because inadequate PCIe slot power would typically cause the system to fail to POST or the GPU to produce no output at all, not a clean boot with the device simply missing from Device Manager. Option C is wrong because a low CMOS battery affects clock/time settings and BIOS retention, not PCIe device enumeration. Option D is wrong because the CPU fan header is unrelated to PCIe slot detection — a fan header issue would trigger thermal warnings or fan errors, not a missing GPU.

Full explanation →

444

MCQmedium

A technician is setting up a new all-in-one PC for a reception desk. The PC has a touchscreen display. After installation, the touch function does not respond. The technician has verified that the display works and the OS is loaded. What should the technician check first?

A.Replace the touchscreen digitizer

B.Check if the touchscreen driver is installed in Device Manager

C.Clean the screen with a microfiber cloth

D.Disable and re-enable the touchscreen in BIOS

AnswerB

Checking Device Manager for the touchscreen driver is the most logical and effective first step because drivers are essential software components that enable the operating system to communicate with and control hardware devices. If the driver is missing, corrupted, or incorrectly installed, the touchscreen will not function, regardless of its physical integrity. Device Manager provides a centralized interface to verify driver status, update drivers, or identify hardware conflicts, making it crucial for initial diagnostics.

Why this answer

The most common reason a touchscreen fails to respond after a working display and OS load is a missing or incorrect driver. In Windows, the touchscreen driver appears under 'Human Interface Devices' in Device Manager; if it's not present or has a yellow exclamation mark, the OS cannot interpret touch input. Checking Device Manager is the quickest, non-invasive first step before considering hardware replacement.

Exam trap

The trap here is that candidates may jump to hardware replacement (digitizer) or BIOS settings, overlooking the fundamental troubleshooting step of verifying the driver in Device Manager, which is the most common cause of a non-functional touchscreen after a fresh OS installation.

How to eliminate wrong answers

Option A is wrong because replacing the touchscreen digitizer is a hardware repair that should only be attempted after all software and driver issues are ruled out, and it is not the first troubleshooting step. Option C is wrong because cleaning the screen with a microfiber cloth addresses physical dirt or smudges, but a non-responsive touchscreen that was never functional is almost certainly a driver or configuration issue, not a cleanliness problem. Option D is wrong because disabling and re-enabling the touchscreen in BIOS is unnecessary; the touchscreen is typically enabled by default in BIOS, and the issue is almost always at the OS/driver level, not the firmware level.

Full explanation →

445

MCQmedium

A user complains that their external monitor flickers intermittently when connected via a VGA cable to their laptop. The laptop has a VGA port, and the monitor works fine with another computer. Which connector-related issue is most likely?

A.The monitor's resolution is set too high for the VGA cable.

B.The laptop's VGA port is not providing enough power.

C.A bent pin inside the VGA connector is causing poor contact.

D.The VGA cable is not compatible with the laptop's graphics card.

AnswerC

VGA connectors utilize multiple pins (typically 15) to transmit individual color signals (Red, Green, Blue), horizontal and vertical synchronization, and ground connections. If even one of these delicate pins is bent, it can prevent proper electrical contact with the corresponding receptacle in the port, leading to an intermittent or complete loss of a specific signal component. This disruption often manifests as flickering, color distortion, or a completely blank screen, as the display struggles to maintain a stable image due to an incomplete signal.

Why this answer

A bent pin inside the VGA connector creates an intermittent electrical contact, which manifests as flickering or loss of color channels on the display. Since the monitor works fine with another computer, the fault is isolated to the laptop's VGA connector or cable end, not the monitor. VGA uses 15 pins carrying analog RGB, HSYNC, VSYNC, and ground signals, so a single damaged pin can disrupt sync and cause flicker.

Exam trap

The trap here is that candidates blame the graphics card, resolution, or power when the symptom is intermittent and the monitor is proven good elsewhere — the exam expects you to isolate the connector as the physical fault.

How to eliminate wrong answers

Option A is wrong because an unsupported resolution typically produces a blank screen or 'out of range' message, not intermittent flicker, and VGA can carry high resolutions with reduced quality rather than flicker. Option B is wrong because VGA ports do not supply power to the monitor; the monitor has its own power source, so 'not enough power' is technically meaningless for VGA. Option D is wrong because VGA is a standardized analog interface and any VGA cable works with any VGA-capable graphics card; there is no compatibility matrix between cables and GPUs.

Full explanation →

446

MCQhard

A network administrator is setting up a new branch office. The branch router must automatically obtain a public IP address from the ISP, and internal devices must receive private IP addresses from the router. Which combination of network services should be configured on the router?

A.DHCP client and DNS server

B.DHCP client and DHCP server

C.DHCP server and NAT

D.DNS server and NAT

AnswerB

This option correctly identifies the essential dual roles of a router in a typical branch office setup. On its external (WAN) interface, the router acts as a DHCP client to automatically acquire a public IP address, subnet mask, default gateway, and DNS server information from the Internet Service Provider. Simultaneously, on its internal (LAN) interface, the router functions as a DHCP server, dynamically assigning private IP addresses, subnet masks, and default gateway information to all connected devices within the branch network, simplifying client configuration.

Why this answer

The branch router needs to obtain a public IP address automatically from the ISP, which requires it to act as a DHCP client on its WAN interface. At the same time, internal devices need private IP addresses, so the router must also act as a DHCP server on its LAN interface, leasing addresses from a private range. Option B correctly combines both roles: DHCP client on the WAN side and DHCP server on the LAN side.

Exam trap

The CompTIA A+ exam often tests the distinction between DHCP client (for obtaining an IP on the WAN) and DHCP server (for assigning IPs on the LAN), and candidates mistakenly think NAT or DNS is required for IP assignment, when in fact NAT is for translation and DNS is for name resolution, not address leasing.

How to eliminate wrong answers

Option A is wrong because while a DHCP client is needed for the WAN interface, a DNS server is not required for internal devices to obtain private IP addresses; DNS resolution can be provided by the ISP or a public DNS, and the router does not need to host a DNS server for basic IP assignment. Option C is wrong because NAT is used to translate private IPs to the public IP, but the question asks for the services that obtain and assign IP addresses, not for address translation; NAT is a separate function that would be configured in addition to DHCP, not instead of a DHCP server. Option D is wrong because neither a DNS server nor NAT directly handles the automatic acquisition of a public IP (DHCP client) or the assignment of private IPs (DHCP server); DNS resolves names, and NAT translates addresses, but neither service obtains or leases IP addresses.

Full explanation →

447

MCQeasy

A user complains that they can browse the internet but cannot access network shares on a file server by hostname, though they can access them by IP address. The DNS server is responding to queries for other domains. Which protocol is most likely malfunctioning?

A.HTTP

B.NetBIOS

C.DHCP

D.ARP

AnswerB

NetBIOS (Network Basic Input/Output System) provides name resolution services primarily within local area networks, allowing devices to locate each other by name rather than IP address. If a user can successfully browse the internet using IP addresses but fails to access other network resources when using their hostnames, it indicates a specific failure in name-to-IP resolution. This scenario points directly to a malfunctioning NetBIOS name service, as it would prevent the translation of local hostnames into their corresponding IP addresses, while direct IP access bypasses this layer.

Why this answer

The user can access network shares by IP address but not by hostname, which indicates a name resolution failure specific to NetBIOS. NetBIOS over TCP/IP (NBT) is responsible for resolving NetBIOS names (used for file and printer sharing on Windows networks) to IP addresses. Since DNS works for other domains but not for the file server's hostname, the issue is likely with NetBIOS name resolution, not DNS.

Exam trap

The trap here is that candidates often assume DNS is the only name resolution protocol and overlook NetBIOS, which is specifically used for legacy Windows file sharing and can fail independently of DNS.

How to eliminate wrong answers

Option A is wrong because HTTP is an application-layer protocol for web traffic, not for resolving hostnames to IP addresses; the user can browse the internet, so HTTP is functioning. Option C is wrong because DHCP assigns IP addresses and other network configuration, but the user already has a valid IP address and can communicate via IP, so DHCP is not the cause. Option D is wrong because ARP resolves IP addresses to MAC addresses on the local network; since the user can access the file server by IP address, ARP is working correctly.

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448

MCQeasy

During a routine printer maintenance, you replace the toner cartridge in a laser printer. After reassembly, the printer displays 'Replace Toner' error even though the new cartridge is installed. What should you do first?

A.Replace the fuser assembly

B.Clean the corona wire

C.Remove the protective seal and reseat the cartridge

D.Update the printer firmware

AnswerC

Many new toner cartridges come with a protective sealing strip that must be removed to allow toner to flow from the reservoir to the developer unit. Failure to remove this seal will prevent the printer from dispensing toner and can often trigger a "toner low" or "cartridge not detected" error. Additionally, reseating the cartridge ensures it is fully engaged with the printer's electrical contacts and mechanical locking mechanisms, which are essential for proper recognition and communication with the printer's control board.

Why this answer

New toner cartridges ship with a protective seal (or orange tab/tape) covering the toner outlet; if it isn't removed, the printer cannot detect toner flow and reports 'Replace Toner' even though the cartridge is physically installed. Removing the seal and reseating the cartridge is the correct first step. This is a common, easily overlooked installation error.

Exam trap

220-1201 often tests whether candidates jump to hardware replacement (fuser, firmware) instead of checking the simplest physical cause — the unremoved protective seal on a new cartridge.

How to eliminate wrong answers

Option A is wrong because a fuser failure would produce smearing or fuser errors, not a 'Replace Toner' message, and replacing it is a costly, unnecessary escalation. Option B is wrong because cleaning the corona wire addresses print quality artifacts like streaks, not toner detection errors. Option D is wrong because firmware updates do not resolve a physical installation issue where the toner seal blocks the cartridge from functioning.

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449

MCQmedium

During a hardware installation, you are tasked with setting up a RAID 1 array in a server using two identical 4 TB HDDs. After configuration, the total usable capacity is only 4 TB. Is this expected behavior?

A.No, the array should show 8 TB because the drives are identical.

B.Yes, RAID 1 provides fault tolerance by mirroring data, so usable capacity is 4 TB.

C.No, the array should be configured as RAID 0 to get 8 TB.

D.Yes, but only if the drives are set as JBOD.

AnswerB

This statement is correct because RAID 1's fundamental purpose is to provide fault tolerance by maintaining an identical copy of data across two or more drives. With two 4 TB drives configured in RAID 1, one drive mirrors the other, resulting in a total usable capacity equivalent to a single drive, which is 4 TB. This configuration ensures data availability even if one drive fails.

Why this answer

RAID 1 is a mirrored configuration where identical data is written to both drives simultaneously. Because each drive holds a complete copy of the data, the usable capacity equals the size of a single drive — 4 TB in this case — while the second drive provides redundancy. This is expected and correct behavior.

Exam trap

220-1201 often tests the capacity math of RAID levels — the trap is assuming identical drives always sum their capacity, when RAID 1 mirrors and therefore halves usable space.

How to eliminate wrong answers

Option A is wrong because RAID 1 does not combine capacity; identical drives do not double usable space in a mirror. Option C is wrong because RAID 0 (striping) would yield 8 TB but provides zero fault tolerance, which contradicts the stated goal of a RAID 1 array. Option D is wrong because JBOD (Just a Bunch Of Disks) concatenates drives without redundancy and is not RAID 1; the 4 TB result is due to mirroring, not JBOD.

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450

MCQeasy

A small business wants to migrate its email and document collaboration to the cloud but must keep sensitive financial records on local servers due to regulatory requirements. Which cloud deployment model should they choose?

A.Public cloud

B.Private cloud

C.Hybrid cloud

D.Community cloud

AnswerC

A hybrid cloud strategy integrates public cloud services, such as email and collaboration platforms, with a private cloud or existing on-premises infrastructure. This architecture allows the business to host sensitive data and applications requiring strict regulatory compliance on its secure, controlled private infrastructure. Simultaneously, it leverages the scalability, cost-efficiency, and managed services of a public cloud for less sensitive workloads like email and general collaboration tools, providing the desired flexibility and compliance.

Why this answer

This question covers cloud deployment models. A hybrid cloud combines public cloud services (for email/collaboration) with private or on-premises infrastructure (for sensitive data). Public cloud alone would violate regulations, community cloud is for shared industry needs, and private cloud is entirely on-premises, missing the benefits of public cloud for non-sensitive workloads.

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CompTIA A+ Core 1 220-1201 (220-1201) — Questions 376–450