CompTIA A+ Core 1 220-1201 220-1201 Questions 451–525 | Page 7/12

451

MCQeasy

A user reports that their Android phone will not install an app from the Google Play Store. The device has plenty of storage space and a strong internet connection. What is the most likely cause of this issue?

A.The app is not compatible with the device's screen resolution.

B.The device's operating system version is too old for the app.

C.The Google Play Store app needs to be reinstalled.

D.The user is not signed into their Google account.

AnswerB

Many Android applications leverage specific Application Programming Interfaces (APIs) and features introduced in newer versions of the Android operating system. Developers declare a minimum API level in their app's manifest file, which the Google Play Store uses to determine compatibility. If a device's Android OS version is older than the app's declared minimum API level, the Play Store will prevent installation, as the app would likely crash or fail to function correctly due to missing system components.

Why this answer

The most likely cause is that the device's operating system version is too old for the app. Android apps specify a minimum API level (minSdkVersion) in their manifest; if the device runs an older OS version below that threshold, Google Play Store will block the installation and display an incompatibility message. Since the user has plenty of storage and a strong connection, the OS version is the primary remaining constraint.

Exam trap

The 220-1201 exam often tests the misconception that storage or connectivity are the only blockers, but the trap here is that OS version compatibility is a silent filter enforced by the Play Store's server-side logic, not a client-side error message.

How to eliminate wrong answers

Option A is wrong because screen resolution incompatibility does not prevent installation; the Play Store may scale or letterbox the app, but it will still install. Option C is wrong because reinstalling the Play Store app is rarely necessary and would not fix an OS version mismatch; the issue is server-side compatibility filtering, not a corrupted client. Option D is wrong because if the user were not signed into their Google account, they would be prompted to sign in, not blocked from installing due to version incompatibility; the Play Store requires an account for any installation, so this would be a different error.

Full explanation →

452

MCQmedium

A user reports that their iPhone will not connect to a Bluetooth speaker that is in pairing mode. The speaker is listed in the iPhone's Bluetooth settings but tapping it does nothing. What should the technician try first?

A.Restart the iPhone.

B.Forget the speaker in Bluetooth settings and re-pair.

C.Reset the network settings on the iPhone.

D.Update the speaker's firmware.

AnswerB

Forgetting the speaker in Bluetooth settings and then re-pairing is the most effective solution because it purges the iPhone's stored Bluetooth link key and associated profile data for that specific device. This action forces a complete re-initialization of the pairing process, including device discovery, authentication, and service negotiation. This often resolves issues caused by corrupted pairing information or an outdated connection profile on the iPhone.

Why this answer

When a Bluetooth speaker is listed in the iPhone's settings but tapping it fails to connect, the most common cause is a corrupted pairing record. Selecting 'Forget This Device' removes the stored link key, forcing a fresh pairing handshake that re-establishes the correct encryption and service discovery. This is the first-line troubleshooting step because it directly addresses the stored connection state without affecting other network settings or requiring a device restart.

Exam trap

The 220-1201 exam often tests the misconception that a full device restart or network reset is required for Bluetooth issues, when in fact the targeted step of forgetting and re-pairing resolves the majority of corrupted-link-key scenarios without collateral damage.

How to eliminate wrong answers

Option A is wrong because restarting the iPhone clears temporary caches but does not remove the corrupted pairing record; the same faulty link key will be reloaded, so the connection will still fail. Option C is wrong because resetting network settings is an overly aggressive step that wipes all Wi-Fi networks, VPNs, and cellular settings, while the issue is isolated to a single Bluetooth pairing record. Option D is wrong because updating the speaker's firmware is a valid long-term fix for compatibility bugs, but it is not the first step; the technician should first attempt the simpler, non-destructive re-pairing process.

Full explanation →

453

MCQmedium

During a site survey, a technician finds that a new access point on the 2.4 GHz band is experiencing heavy interference. The access point automatically selected channel 6. Which action should the technician take to minimize interference?

A.Enable WPA3 encryption to reduce interference.

B.Change the channel to 1 or 11.

C.Set the channel width to 40 MHz.

D.Disable the 2.4 GHz radio and use only 5 GHz.

AnswerB

In the crowded 2.4 GHz band, Wi-Fi channels are 22 MHz wide but only spaced 5 MHz apart, causing significant overlap. Channels 1, 6, and 11 are the only three non-overlapping channels available. By switching to one of these specific channels, a technician can effectively reduce co-channel interference from neighboring access points or other wireless devices, thereby improving signal quality, stability, and overall network performance.

Why this answer

In the 2.4 GHz band, only channels 1, 6, and 11 are non-overlapping (each occupies 22 MHz with 5 MHz spacing). Since channel 6 is already experiencing heavy interference, moving to channel 1 or 11 avoids co-channel and adjacent-channel interference from other devices on or near channel 6, minimizing contention.

Exam trap

CompTIA often tests the misconception that any channel change will help, but the trap here is that only channels 1, 6, or 11 are non-overlapping in 2.4 GHz, so switching to a channel like 3 or 9 would actually increase adjacent-channel interference.

How to eliminate wrong answers

Option A is wrong because WPA3 encryption secures data but does not reduce radio frequency interference; interference is a physical-layer issue, not a security-layer one. Option C is wrong because setting the channel width to 40 MHz on 2.4 GHz consumes more spectrum and actually increases the chance of interference, as it overlaps multiple non-overlapping channels and violates best practices for dense deployments. Option D is wrong because disabling the 2.4 GHz radio may not be practical or necessary; the technician should first try a different non-overlapping channel before abandoning the band entirely, as many legacy clients still require 2.4 GHz connectivity.

Full explanation →

454

MCQhard

A technician is troubleshooting a network where users can access internal resources but cannot reach any external websites. The internal network uses a proxy server. The technician finds that the proxy server is configured to use a specific protocol to forward requests to the internet. Which protocol is the proxy server most likely using to communicate with external web servers?

A.FTP

B.DNS

C.HTTP

D.SNMP

AnswerC

HTTP (Hypertext Transfer Protocol) is the primary application-layer protocol for transmitting hypermedia documents, such as HTML, across the World Wide Web. When a client is configured to use a proxy server, it sends its web requests (often HTTP or HTTPS) directly to the proxy. The proxy then acts on behalf of the client, establishing its own connection to the destination web server and forwarding the client's HTTP request, receiving the response, and then relaying it back to the client. This makes HTTP the core protocol for forwarding web traffic through a proxy.

Why this answer

The proxy server is most likely using HTTP (Hypertext Transfer Protocol) to forward requests to external web servers. Since users are accessing internal resources but cannot reach external websites, the proxy server acts as an intermediary for web traffic. HTTP is the standard protocol for web communication, and proxy servers typically use HTTP (or HTTPS) to forward client requests to internet web servers, as it allows the proxy to cache, filter, and modify web traffic.

Exam trap

Candidates may confuse the protocol used for internal client-to-proxy communication (HTTP/HTTPS) with the protocol used for proxy-to-external server communication, or mistakenly think DNS or FTP are used for forwarding web requests. In CompTIA A+, remember that proxy servers use HTTP/HTTPS to forward web requests to external servers.

How to eliminate wrong answers

Option A (FTP) is wrong because FTP is a file transfer protocol used for uploading/downloading files, not for forwarding general web requests to external servers; proxy servers do not use FTP as the primary protocol for internet web access. Option B (DNS) is wrong because DNS is a name resolution protocol that translates domain names to IP addresses, not a protocol for forwarding web requests; while DNS is necessary for resolving external hostnames, the proxy server itself uses HTTP to communicate with web servers. Option D (SNMP) is wrong because SNMP is a network management protocol used for monitoring and managing network devices, not for forwarding client web requests to the internet.

Full explanation →

455

MCQmedium

A customer complains that their inkjet printer's output has horizontal white lines across the page. The cartridges are new and the printer passes a nozzle check pattern. What should the technician check next?

A.Replace the printhead

B.Clean the encoder strip

C.Inspect the paper feed rollers

D.Update the printer driver

AnswerC

Worn, dirty, or damaged paper feed rollers are a common cause of horizontal white lines or banding in inkjet prints because they lead to inconsistent paper movement through the printer. If the rollers slip or do not grip the paper uniformly, the paper momentarily pauses or slows down as the printhead is laying down ink, creating unprinted gaps or lines. Therefore, inspecting and potentially cleaning or replacing these rollers is a crucial diagnostic step for this specific print defect.

Why this answer

Horizontal white lines on inkjet output often indicate a paper feed issue, such as dirty or worn feed rollers. The roller's surface can lose traction, causing the paper to feed unevenly and creating gaps. Cleaning or replacing the feed rollers typically resolves the problem.

Full explanation →

456

MCQeasy

A small office has a single switch connecting all workstations. Several users report that they cannot access the internet, but they can still communicate with each other on the local network. What is the most likely cause?

A.The switch has a bad port.

B.The router is not properly routing traffic to the internet.

C.The DNS server is unreachable.

D.The workstations have incorrect subnet masks.

AnswerB

A router's primary function is to forward packets between different networks, specifically between the local area network (LAN) and external networks like the internet (WAN). If the router is misconfigured, powered off, or experiencing a hardware failure, it cannot perform this essential routing function. Consequently, devices on the local network can still communicate with each other via the switch, but any traffic destined for external networks, such as the internet, will be dropped or fail to reach its intended destination.

Why this answer

The router is the device that connects the local network to the internet, performing NAT and routing between the LAN and WAN. Since workstations can communicate with each other, the switch and local network are functioning. The inability to reach the internet points to a failure in the router's routing, WAN link, or NAT configuration.

Exam trap

220-1201 often tests the difference between DNS failure and routing failure, tricking candidates into blaming DNS when users can still ping local resources but not external ones.

How to eliminate wrong answers

Option A is wrong because a bad switch port would affect only the device connected to that port, not all users, and local communication would also fail for that device. Option C is wrong because an unreachable DNS server would prevent name resolution but users could still reach internet resources by IP address; also, local communication would not be affected. Option D is wrong because incorrect subnet masks would typically cause local communication issues or partial connectivity, not a complete internet outage while local traffic works.

Full explanation →

457

MCQmedium

A technician is configuring a corporate iPhone for a new executive. The user needs to access company email, calendar, and contacts, but the company requires that all data be encrypted and the device be remotely wipeable. Which configuration step is essential?

A.Install a third-party antivirus app.

B.Enable the device's passcode and Touch ID/Face ID.

C.Disable iCloud backup for the device.

D.Set up a VPN connection for all traffic.

AnswerB

Enabling a passcode, along with biometric authentication like Touch ID or Face ID, is a fundamental security measure on iOS devices. This action directly activates the device's hardware-based encryption, ensuring that all data at rest is cryptographically protected. Furthermore, a passcode is a prerequisite for Mobile Device Management (MDM) solutions to initiate a remote wipe command, making it essential for data security and device management in a corporate environment.

Why this answer

Enabling the device's passcode and Touch ID/Face ID is essential because it activates hardware-backed encryption on iOS devices. Without a passcode, iOS cannot generate the encryption key required to protect data at rest, and remote wipe capabilities are contingent on the device being able to authenticate and enforce management commands. This step directly satisfies the corporate requirements for data encryption and remote wipeability.

Exam trap

The 220-1201 exam often tests the misconception that encryption requires a third-party tool or that VPNs provide device-level encryption, when in fact iOS's built-in Data Protection is triggered solely by enabling a passcode.

How to eliminate wrong answers

Option A is wrong because iOS's sandbox architecture and app review process make traditional antivirus software unnecessary and ineffective; iOS does not allow third-party apps to scan system files or other apps' data. Option C is wrong because disabling iCloud backup does not enable encryption or remote wipe; it only prevents data from being backed up to iCloud, which is a separate data protection concern. Option D is wrong because a VPN encrypts data in transit, not data at rest on the device, and does not provide device-level encryption or remote wipe capabilities.

Full explanation →

458

MCQmedium

A technician is configuring a small network with five computers and a printer. The network must use private IP addresses and allow all devices to communicate. The technician assigns IPs manually but forgets to set a default gateway on one computer. Which functionality will be lost on that computer?

A.Ability to communicate with the printer

B.Ability to access the internet

C.Ability to obtain an IP address via DHCP

D.Ability to resolve DNS names

AnswerB

Without a default gateway configured, a computer cannot send packets to any destination IP address that is not on its local subnet. The internet comprises numerous external networks, making the default gateway essential as the exit point for all traffic destined beyond the local area network. Consequently, internet access is completely lost.

Why this answer

The default gateway is the router's IP address that provides a path to networks outside the local subnet. Without a default gateway, the computer can still communicate with other devices on the same local network (like the printer and other computers) using ARP and direct MAC addressing, but it cannot reach any destination outside its own subnet, including the internet. The technician manually assigned IPs, so DHCP is not involved, and DNS resolution would still work for local names but would fail for external names only because the DNS query packets cannot leave the subnet without a gateway.

Exam trap

A common misconception is that a missing default gateway prevents all communication, but the trap here is that local subnet communication (like with a printer) works fine because it uses ARP and direct MAC addressing, not routing.

How to eliminate wrong answers

Option A is wrong because communication with the printer occurs on the same local subnet using ARP and direct MAC frames, which does not require a default gateway. Option C is wrong because the technician assigned IPs manually (static configuration), so DHCP is not used at all; the computer never attempts to obtain an IP via DHCP. Option D is wrong because DNS resolution itself is not directly dependent on the default gateway; a DNS server on the local subnet could still be queried, but if the DNS server is external, the query would fail due to the missing gateway, not because DNS resolution is inherently lost.

Full explanation →

459

MCQeasy

A user reports that their laptop cannot connect to the internet, but other devices on the same wired network work fine. The technician checks the IP configuration and sees the laptop has an IP address of 169.254.3.12. What is the most likely cause?

A.The DNS server is unreachable

B.The DHCP server is not responding

C.The default gateway is misconfigured

D.The network cable is faulty

AnswerB

Automatic Private IP Addressing (APIPA) assigns an IP address in the 169.254.x.x range specifically when a client is configured for DHCP but fails to receive an IP address from a DHCP server. This indicates that the client attempted to contact a DHCP server but received no response, making the DHCP server unreachable, offline, or misconfigured as the most probable cause for the APIPA assignment.

Why this answer

The IP address 169.254.3.12 falls within the Automatic Private IP Addressing (APIPA) range (169.254.0.0/16), which Windows assigns when a DHCP discovery broadcast fails to receive a response. Since other devices on the same wired network work fine, the issue is isolated to this laptop's inability to reach the DHCP server, most likely due to a local configuration problem or a faulty network interface.

Exam trap

The most common mistake on this question is to assume that a 169.254.x.x address points to a DNS or gateway problem, but APIPA specifically indicates a DHCP failure, not a higher-layer or routing issue.

How to eliminate wrong answers

Option A is wrong because a DNS server being unreachable would not cause the laptop to obtain an APIPA address; DNS failures occur after IP configuration is complete and would still show a valid DHCP-assigned IP. Option C is wrong because a misconfigured default gateway would still allow the laptop to obtain a proper DHCP lease; the APIPA address indicates the DHCP process itself failed, not a routing issue. Option D is wrong because a faulty network cable would typically result in a 'Network cable unplugged' error or a link light issue, not the assignment of an APIPA address; the laptop would not even attempt DHCP discovery if the physical layer were down.

Full explanation →

460

MCQhard

A company uses a custom Android app that stores data locally. After a recent OS update, the app fails to write data to the internal storage, but it can read existing data. The app has all necessary permissions. What is the most likely cause?

A.The internal storage is full and cannot accept new data.

B.The OS update introduced scoped storage restrictions that the app does not support.

C.The app's cache needs to be cleared to free up space.

D.The device's SD card has been removed.

AnswerB

Android's scoped storage, introduced in Android 10 (API level 29), restricts apps to their own app-specific directories or specific media types, preventing broad access to shared storage. An older custom Android app, not updated to target a newer API level or implement the new storage access APIs, would lose its ability to write data to previously accessible shared locations after an OS update, even if it can still read its own existing files.

Why this answer

This question tests advanced knowledge of Android storage changes. Starting with Android 11, scoped storage restrictions limit how apps access shared storage. Even with permissions, apps may need to use specific APIs (like MediaStore or SAF) to write files.

The app likely needs an update to comply with the new storage model.

Full explanation →

461

MCQeasy

A customer reports that their laptop connects to the office Wi-Fi but cannot access the internet. Other devices on the same network work fine. The technician checks the laptop's IP configuration and sees an IP address of 169.254.15.22. What is the most likely cause of this issue?

A.The DNS server is misconfigured.

B.The laptop's network adapter is faulty.

C.The DHCP server is out of available IP addresses.

D.The laptop's DHCP client is failing to obtain an IP address.

AnswerD

The 169.254.x.x address is an APIPA self-assignment, generated when the DHCP client receives no response from a server. Since other devices work, the fault lies with this laptop's DHCP client, not the network, matching the stem's symptom of Wi-Fi connectivity without internet access.

Why this answer

The IP address 169.254.15.22 falls within the Automatic Private IP Addressing (APIPA) range (169.254.0.0/16), which Windows assigns when the DHCP client fails to receive a valid IP from a DHCP server. Since other devices on the same network work fine, the DHCP server is not exhausted; rather, this specific laptop's DHCP client could not complete the DORA process, likely due to a misconfiguration, firewall blocking DHCP traffic, or a driver issue. Option D correctly identifies that the DHCP client is failing to obtain an IP address, as evidenced by the APIPA address.

Exam trap

CompTIA A+ often tests the distinction between a DHCP server being out of addresses (which would affect all clients) versus a client-specific DHCP failure (which results in an APIPA address only for that client), leading candidates to incorrectly choose 'DHCP server is out of available IP addresses' when the symptom is isolated to one device.

How to eliminate wrong answers

Option A is wrong because a misconfigured DNS server would not prevent the laptop from obtaining an IP address; DNS issues occur after a valid IP is assigned, and the APIPA address indicates the DHCP process itself failed. Option B is wrong because a faulty network adapter would typically show no link light or connectivity at all, not a successful association with the Wi-Fi and an APIPA address; the adapter is functional enough to receive an APIPA lease. Option C is wrong because if the DHCP server were out of available IP addresses, other devices on the same network would also fail to obtain an IP and would show APIPA addresses, but the question states other devices work fine, ruling out pool exhaustion.

Full explanation →

462

MCQeasy

A user reports that their MFP is making a loud grinding noise when printing, and the output pages have vertical streaks. The MFP is a laser printer with a separate toner cartridge and imaging drum. What is the most likely cause?

A.The toner cartridge is low on toner.

B.The fuser unit is failing.

C.The imaging drum is damaged or worn.

D.The paper tray is misaligned.

AnswerC

The imaging drum, or photoconductive drum, is a critical component that receives the laser image and transfers toner to the paper. If the drum's surface is scratched, pitted, or worn, these imperfections will consistently pick up or fail to pick up toner, resulting in distinct, repetitive vertical streaks on the printed page. Additionally, a damaged or worn drum could rotate unevenly or have issues with its internal gears or bearings, leading to the reported grinding noises as it operates.

Why this answer

Vertical streaks on laser printer output often indicate a damaged or worn imaging drum. The grinding noise suggests a mechanical issue with the drum rotation, which is a common failure point in laser MFPs.

Full explanation →

463

MCQeasy

A customer reports that their new Bluetooth headphones pair with their smartphone but produce no audio during calls. The headphones work fine with other devices. What is the most likely cause?

A.The headphones are out of battery.

B.The smartphone's Bluetooth antenna is damaged.

C.The smartphone does not support the required Bluetooth profile for call audio.

D.The headphones are paired to too many devices simultaneously.

AnswerC

Bluetooth call audio requires the Hands-Free Profile (HFP) or Headset Profile (HSP), whereas media playback uses A2DP. Since the headphones work elsewhere, the smartphone likely lacks HFP/HSP support, satisfying the stem's constraint that pairing succeeds but call audio fails.

Why this answer

The most likely cause is that the smartphone does not support the Hands-Free Profile (HFP) or Headset Profile (HSP) required for bidirectional call audio over Bluetooth. While the headphones may pair and work for media audio using A2DP, these profiles are distinct and must be supported by both devices for voice calls. Since the headphones work with other devices, the issue is specific to the smartphone's Bluetooth profile support.

Exam trap

The 220-1201 exam often tests the distinction between Bluetooth pairing/connection and profile support, trapping candidates who assume that successful pairing guarantees full functionality across all audio use cases.

How to eliminate wrong answers

Option A is wrong because if the headphones were out of battery, they would not pair or maintain a connection, and they would also fail to produce audio with other devices. Option B is wrong because a damaged Bluetooth antenna would typically cause intermittent connectivity, range issues, or failure to pair entirely, not a selective inability to route call audio while still pairing successfully. Option D is wrong because Bluetooth headphones can be paired with multiple devices but can only be actively connected to one audio source at a time; pairing to many devices does not prevent audio during calls on the currently connected device.

Full explanation →

464

MCQeasy

A client wants to upgrade their workstation with a high-end GPU that requires two 8-pin PCIe power connectors. Their current power supply has only one 6+2 pin PCIe cable. What is the best solution to safely power the new GPU?

A.Use a Molex-to-PCIe adapter to create a second 8-pin connector

B.Install a new power supply that has two 8-pin PCIe cables

C.Connect the GPU using only the 6+2 pin cable and leave the second connector empty

D.Use a Y-splitter on the existing 6+2 pin cable to create two 8-pin connectors

AnswerB

Installing a new power supply specifically rated for the GPU's total power requirements, and equipped with the necessary dedicated 8-pin PCIe power cables, is the safest and most reliable solution. This ensures the GPU receives stable and sufficient current directly from the PSU's 12V rails, preventing overloading of individual cables or rails and maintaining optimal system stability and longevity under heavy load.

Why this answer

The best solution is to install a new power supply that has two 8-pin PCIe cables. This ensures the GPU receives adequate and stable power directly from the PSU, avoiding the risks associated with adapters or splitters. A high-end GPU requires two separate 8-pin connectors to meet its power draw, and using adapters can lead to insufficient power delivery, overheating, or damage.

Exam trap

220-1201 often tests power supply connector safety; candidates may choose adapters or splitters as a quick fix, but the exam expects knowledge that high-end GPUs require dedicated PSU cables.

How to eliminate wrong answers

Option A is wrong because a Molex-to-PCIe adapter is not recommended for high-end GPUs; Molex connectors are limited to about 54W per connector, and adapters can cause voltage drops or fire hazards. Option C is wrong because connecting only one 8-pin cable will not provide enough power; the GPU may not boot or may throttle, and it could damage the card. Option D is wrong because a Y-splitter on a single cable can exceed the cable's current rating, leading to overheating and potential failure; it does not provide the separate power rails that the GPU expects.

Full explanation →

465

MCQmedium

A user's iPhone connects to a public Wi-Fi hotspot but cannot load any web pages. The Wi-Fi icon shows full signal. Other devices on the same network work fine. What is the most likely issue?

A.The iPhone's DNS settings are misconfigured.

B.The iPhone is not accepting the captive portal's terms and conditions.

C.The iPhone's Wi-Fi antenna is faulty.

D.The public Wi-Fi network is using an incompatible security protocol.

AnswerB

Public Wi-Fi hotspots commonly utilize captive portals that intercept initial web requests and redirect the user to a specific web page. This page requires the user to accept terms and conditions, provide credentials, or make a payment before full internet access is granted. If the user has not completed this interaction, or if the portal page failed to load correctly, the network will restrict outbound traffic, leading to a "connected but no internet" experience.

Why this answer

The most likely issue is that the iPhone has connected to the Wi-Fi network but has not completed the captive portal authentication process. Captive portals require users to accept terms and conditions or log in via a web page before internet access is granted. Since other devices work fine, the network itself is functional, and the iPhone's full signal indicates a good physical connection, pointing to a failure in the portal acceptance step.

Exam trap

The 220-1201 exam often tests the distinction between 'connected to Wi-Fi' and 'authenticated via captive portal,' trapping candidates who assume a full signal and IP address mean full internet access.

How to eliminate wrong answers

Option A is wrong because DNS misconfiguration would typically cause name resolution failures but not prevent all web page loading; more importantly, if the iPhone were already past the captive portal, DNS would be functional, and the symptom here is a pre-authentication block. Option C is wrong because a faulty Wi-Fi antenna would result in weak or no signal, not full signal bars, and would affect all network communication, not just web browsing. Option D is wrong because public Wi-Fi hotspots almost always use open or WPA2-PSK security, and an incompatible security protocol would prevent the iPhone from associating with the network entirely, not just block web pages after connection.

Full explanation →

466

MCQmedium

A small business uses an MFP that also functions as a network scanner. Users can scan to a shared folder on a Windows PC, but some users get an 'Access Denied' error when scanning. Other users can scan successfully. What is the most likely cause?

A.The network switch port is faulty.

B.The MFP's firmware is outdated.

C.The MFP's scan-to-folder credentials do not have write permissions to the shared folder.

D.The Windows firewall is blocking the MFP.

AnswerC

When an MFP attempts to perform a scan-to-folder operation, it utilizes pre-configured credentials (often a dedicated service account or specific user account) to authenticate with the network share. If these specific credentials lack the necessary write permissions on the target shared folder, the operating system will correctly deny the write request, resulting in an "access denied" error message. This scenario explains why individual users might successfully scan using their own authenticated sessions, while the MFP's automated process fails due to its distinct, insufficient permissions.

Why this answer

Scan to folder requires the MFP to have write permissions to the shared folder. If the MFP uses a generic service account, that account must have appropriate NTFS and share permissions. The issue is likely permission-related for the MFP's credentials.

Full explanation →

467

MCQhard

A user complains that their wireless Bluetooth earbuds frequently disconnect during calls when their smartphone is in their pocket. The earbuds work fine when the phone is on a desk. Which accessory or configuration change is most likely to resolve this issue?

A.A Bluetooth signal booster app

B.A Bluetooth neckband style headset

C.A metal phone case

D.A Wi-Fi analyzer to change router channels

AnswerB

A Bluetooth neckband style headset positions the primary Bluetooth receiver module on the user's neck or collarbone, rather than directly inside the ear. This placement provides a more direct and less obstructed line of sight to the source device, such as a phone in a pocket. By minimizing the amount of the user's body (which contains water and absorbs RF signals) between the transmitter and receiver, it significantly reduces signal attenuation and improves connection stability.

Why this answer

The issue is that the smartphone's Bluetooth antenna is being physically blocked or attenuated by the user's body (specifically the leg/torso) when the phone is in a pocket. A Bluetooth neckband-style headset places the Bluetooth receiver and antenna around the user's neck, which is typically above the pocket and has a clearer line-of-sight to the phone, significantly reducing signal obstruction and multipath interference. This configuration change directly addresses the physical signal path problem without requiring any software or network changes.

Exam trap

The 220-1201 exam often tests the misconception that Bluetooth issues are always caused by RF interference or software problems, when in reality the most common cause of intermittent disconnections with portable devices is physical signal obstruction by the user's own body.

How to eliminate wrong answers

Option A is wrong because a 'Bluetooth signal booster app' cannot overcome physical signal attenuation caused by the human body; Bluetooth operates in the 2.4 GHz ISM band, and software cannot amplify or redirect the radio signal from the phone's antenna. Option C is wrong because a metal phone case would actually worsen the problem by further shielding the phone's Bluetooth antenna, increasing signal loss and disconnections. Option D is wrong because a Wi-Fi analyzer to change router channels addresses co-channel interference from Wi-Fi networks, but the problem is a physical obstruction (the user's body) between the phone and earbuds, not RF interference from other devices.

Full explanation →

468

MCQmedium

A user wants to add a second hard drive to their desktop for extra storage, but the computer only has one SATA data cable available. The technician has an extra SATA power cable from the power supply. What is the most practical solution?

A.Use a Y-splitter on the existing SATA data cable to connect both drives.

B.Purchase an additional SATA data cable and use the existing power cable.

C.Connect the second drive using an external USB-to-SATA adapter.

D.Replace the existing hard drive with a larger one.

AnswerB

Adding a second internal hard drive requires both a dedicated data connection to an available SATA port on the motherboard and a power connection from the power supply. Since the technician has confirmed an extra power cable is available, the only missing component is a dedicated SATA data cable to connect the new drive to the motherboard, fulfilling both essential requirements for operation.

Why this answer

A SATA data cable carries data only; power is delivered separately via a SATA power connector from the PSU. Since the technician already has a spare SATA power cable and the only missing item is a data cable, the correct fix is to buy an additional SATA data cable and connect the second drive using the existing power cable. This is the standard, low-cost, and non-destructive solution for adding an internal drive.

Exam trap

220-1201 often tests the misconception that a SATA data cable can be split like a power cable; candidates who confuse the two connector types pick the Y-splitter answer.

How to eliminate wrong answers

Option A is wrong because SATA data cables are point-to-point and cannot be Y-split; splitting a data cable would corrupt the signal and is not a supported topology. Option C is wrong because an external USB-to-SATA adapter would work but is not the most practical solution when the goal is to add an internal drive and only a data cable is missing. Option D is wrong because replacing the existing drive with a larger one is a destructive migration, not a way to add a second drive for extra storage.

Full explanation →

469

MCQmedium

A laptop's touchpad is not working correctly; the cursor jumps erratically. You have already updated the driver and checked for debris. What hardware component should you inspect or replace next?

A.Replace the entire keyboard assembly.

B.Reseat the touchpad ribbon cable on the motherboard.

C.Replace the laptop's LCD screen.

D.Reinstall the operating system.

AnswerB

Reseating the touchpad ribbon cable on the motherboard is a highly effective troubleshooting step for erratic or non-functional touchpad behavior. Flexible Printed Circuit (FPC) ribbon cables connect the touchpad's sensor and controller to the laptop's main logic board. A loose, partially dislodged, or poorly seated connection can cause intermittent signal loss or corrupted data transmission, leading directly to the cursor moving erratically or the touchpad becoming unresponsive.

Why this answer

When a touchpad cursor jumps erratically after the driver has been updated and debris ruled out, the next most likely hardware fault is a loose or damaged ribbon cable connecting the touchpad to the motherboard. Reseating that cable restores a clean signal path and is the correct next diagnostic step before replacing larger assemblies. This is a low-cost, high-probability fix that technicians should attempt before escalating to component replacement.

Exam trap

The trap here is that candidates jump to replacing the whole touchpad or keyboard assembly, but CompTIA A+ expects the cheapest, most probable fix first — reseating the ribbon cable — before swapping components.

How to eliminate wrong answers

Option A is wrong because replacing the entire keyboard assembly is unrelated to touchpad input — the keyboard and touchpad are separate input devices with separate cables, so this would not address erratic cursor movement and wastes parts. Option C is wrong because the LCD screen is a display output component; a faulty screen causes visual artifacts, not cursor input errors, so replacing it cannot fix a touchpad signal problem. Option D is wrong because reinstalling the OS is a software-level action that would not resolve a physical connection fault, and the driver has already been updated, making an OS reinstall both unnecessary and unlikely to help.

Full explanation →

470

MCQeasy

A technician is building a new workstation for video editing and needs to ensure the power supply can handle dual GPUs and multiple hard drives. Which specification is most critical to check when selecting a PSU?

A.The total wattage rating of the power supply.

B.The number of SATA power connectors.

C.The combined amperage on the +12V rail(s).

D.The physical form factor (ATX, SFX, etc.).

AnswerC

The combined amperage on the +12V rail(s) is the most critical specification for a high-performance video editing workstation. This rail supplies power directly to the CPU via the EPS connector and to the graphics cards via PCIe power connectors, which are the most power-hungry components. Multiplying this amperage by 12V yields the maximum wattage available for these critical parts, ensuring stability and preventing system crashes or component damage during intensive rendering and processing tasks.

Why this answer

The combined amperage on the +12V rail(s) is the most critical specification because modern GPUs and hard drives draw most of their power from the +12V rail. Dual GPUs can require significant current on +12V, and if the PSU cannot supply enough amperage, the system may be unstable or fail to power on. Total wattage alone does not guarantee sufficient +12V capacity.

Exam trap

220-1201 often tests the misconception that total wattage is the only PSU specification that matters, when the +12V amperage is actually more critical for high-end components.

How to eliminate wrong answers

Option A is wrong because total wattage is a broad indicator, but a PSU with high total wattage may still have weak +12V rails, which are what power the GPUs and drives. Option B is wrong because the number of SATA power connectors is a convenience factor, but not the most critical for powering dual GPUs; adapters can be used, and the amperage is more important. Option D is wrong because the physical form factor determines compatibility with the case, but does not affect the ability to deliver power to high-draw components.

Full explanation →

471

MCQmedium

A user connects a USB-C docking station to their laptop and finds that the external monitor works, but the Ethernet port on the dock does not provide network connectivity. The laptop's built-in Wi-Fi works fine. Which is the most likely cause?

A.The Ethernet cable is faulty

B.The USB-C port on the laptop is damaged

C.The docking station's Ethernet driver is not installed

D.The laptop's Wi-Fi is interfering with Ethernet

AnswerC

Many USB-C docking stations incorporate a dedicated USB-to-Ethernet controller chip (e.g., Realtek, ASIX) to provide wired network connectivity. For the operating system to properly communicate with and utilize this specific hardware component, a corresponding device driver must be installed. Without the correct driver, the OS cannot identify the Ethernet adapter, initialize it, or expose it as a network interface, leading to no network connectivity despite the physical connection.

Why this answer

USB-C docking stations often require specific drivers for their integrated Ethernet adapters to function. Since the external monitor works, the USB-C connection itself is functional, isolating the issue to the Ethernet component. The missing driver prevents the OS from recognizing the network interface, even though the dock's other features operate normally.

Exam trap

The trap here is that candidates assume a working monitor proves the entire dock is functional, overlooking that USB-C alternate mode for DisplayPort can work independently of the USB data lines or the dock's embedded peripherals, each of which may have separate driver requirements.

How to eliminate wrong answers

Option A is wrong because a faulty Ethernet cable would typically cause a link light to be absent or intermittent, but the scenario does not mention any physical layer indicators; moreover, the dock's Ethernet port is completely non-functional, which is more consistent with a driver issue. Option B is wrong because the external monitor works through the same USB-C port, proving the port is capable of data and video transmission; a damaged port would likely affect all functions, not just Ethernet. Option D is wrong because Wi-Fi and Ethernet operate on separate network stacks and can coexist; the laptop's Wi-Fi working fine does not prevent the Ethernet interface from being detected or configured if the driver is present.

Full explanation →

472

MCQmedium

A user reports that their laptop's battery drains quickly when connected to a USB-C docking station, even when the laptop is plugged into the dock's power delivery port. The dock supports 60W power delivery, but the laptop requires 65W. What is the most likely issue?

A.The laptop's battery is failing

B.The dock's power delivery is insufficient for the laptop

C.The USB-C cable is not rated for power delivery

D.The laptop is running high-performance mode

AnswerB

When a dock's power delivery capability (measured in watts) is lower than the laptop's operational power requirements, the laptop will draw supplemental power directly from its internal battery. This continuous discharge, even while connected to the dock, prevents the battery from charging or maintaining its charge level, leading to the observed rapid battery drain. The laptop effectively uses its battery to bridge the power deficit.

Why this answer

The dock supports 60W power delivery, but the laptop requires 65W. When the power provided is less than the laptop's demand, the laptop will draw power from both the dock and its internal battery to meet the shortfall, causing the battery to drain even while connected. This is a classic case of insufficient power delivery from the dock, not a battery failure or cable issue.

Exam trap

The CompTIA A+ exam often tests the misconception that any USB-C cable or dock will charge a laptop as long as it's connected, ignoring the specific wattage requirements and the USB-PD negotiation process.

How to eliminate wrong answers

Option A is wrong because a failing battery would typically show symptoms like sudden shutdowns or inability to hold a charge even when the laptop is on its own charger, not specifically when connected to a dock. Option C is wrong because if the USB-C cable were not rated for power delivery, the laptop would not charge at all or would show a 'not charging' status, rather than draining slowly while connected. Option D is wrong because high-performance mode increases power draw, but the core issue is that the dock cannot supply the required wattage; even in balanced mode, the laptop would still draw more than 60W under load, leading to battery drain.

Full explanation →

473

MCQmedium

A user complains that their PC is running slowly, especially when opening multiple browser tabs. The system has 4 GB of RAM installed, and the OS is Windows 10 64-bit. Task Manager shows memory usage consistently at 90-95%. Which upgrade would provide the most immediate performance improvement?

A.Upgrade the CPU to a faster model.

B.Add an additional 4 GB of RAM to bring the total to 8 GB.

C.Replace the hard drive with a solid-state drive (SSD).

D.Disable the page file to force the system to use only RAM.

AnswerB

Insufficient RAM is a common cause of a slow PC, as the operating system resorts to using the much slower hard drive as virtual memory (page file) when physical RAM is exhausted. Increasing the RAM from 4 GB to 8 GB directly addresses this memory bottleneck, allowing more applications and data to reside in faster physical memory. This significantly reduces reliance on the page file, thereby improving overall system responsiveness, multitasking capabilities, and preventing performance degradation.

Why this answer

With only 4 GB of RAM and memory usage consistently at 90–95%, the system is under memory pressure, causing excessive paging to disk and slowing down multitasking (especially multiple browser tabs). Adding another 4 GB to reach 8 GB directly addresses the bottleneck by giving the OS and applications more physical memory, reducing paging and improving responsiveness immediately.

Exam trap

220-1201 often tests whether candidates can identify the bottleneck from Task Manager data — the trap is picking SSD (which helps but does not fix the root cause) instead of RAM when memory usage is consistently near 100%.

How to eliminate wrong answers

Option A is wrong because a faster CPU will not help when the system is memory-bound; the CPU is likely idle waiting on disk paging. Option C is wrong because an SSD would speed up paging and boot times, but it does not eliminate the root cause of insufficient RAM — the system would still thrash, just faster. Option D is wrong because disabling the page file removes the OS's ability to swap, which can cause out-of-memory errors and application crashes, making performance worse, not better.

Full explanation →

474

MCQmedium

A customer wants to connect two buildings that are 200 meters apart with a high-speed network link. Which cabling solution is most appropriate?

A.Cat6a copper cable

B.Fiber optic cable

C.Coaxial cable

D.Wireless bridge

AnswerB

Fiber optic cable is the optimal choice for connecting two buildings over a 200-meter distance due to its inherent ability to transmit data reliably over much longer spans, often several kilometers, without signal degradation. Unlike copper, fiber is completely immune to electromagnetic interference (EMI) and radio frequency interference (RFI), which is crucial for outdoor or inter-building links where electrical noise can be a concern. Furthermore, it provides superior bandwidth capacity, easily supporting current and future high-speed network requirements.

Why this answer

Fiber optic cable is the most appropriate solution for connecting two buildings 200 meters apart because it supports high-speed data transmission over long distances without signal degradation. Unlike copper cables, fiber is immune to electromagnetic interference (EMI) and can easily exceed the 100-meter distance limit of twisted-pair cabling, making it ideal for inter-building links.

Exam trap

The trap here is that candidates often choose Cat6a copper cable (Option A) because they overlook the 100-meter distance limitation for twisted-pair Ethernet, assuming higher category cables can magically extend the range.

How to eliminate wrong answers

Option A is wrong because Cat6a copper cable has a maximum segment length of 100 meters for high-speed Ethernet (e.g., 10GBASE-T), and 200 meters exceeds this limit, leading to signal loss and unreliable performance. Option C is wrong because coaxial cable, while capable of longer distances, is typically limited to lower bandwidths (e.g., 10-100 Mbps) and is not designed for modern high-speed network links like Gigabit Ethernet or beyond. Option D is wrong because a wireless bridge can cover 200 meters but introduces potential latency, interference, and throughput variability, making it less reliable and slower than a wired fiber solution for a dedicated high-speed link.

Full explanation →

475

MCQmedium

A user complains that their laser printer is picking up multiple sheets of paper at once, causing jams. The paper tray is full of standard 20 lb bond paper. Which component is most likely causing this issue?

A.The pickup roller is worn

B.The paper is too thin

C.The separation pad is worn

D.The fuser is overheating

AnswerC

The separation pad is a crucial component in the paper tray assembly, designed to create friction against the bottom of the top sheet while allowing the pickup roller to advance only that single sheet. When the separation pad becomes worn, its textured surface loses its ability to adequately grip and hold back the sheets beneath the topmost one. This diminished friction allows the pickup roller to pull multiple sheets into the printer's paper path simultaneously, leading to the reported issue.

Why this answer

The separation pad applies friction to the bottom sheet of paper to prevent multiple sheets from being fed simultaneously. When it wears out, it loses friction, allowing the pickup roller to pull multiple sheets into the paper path, causing jams. This is a classic symptom of a worn separation pad.

Exam trap

220-1201 often tests the specific function of the separation pad versus the pickup roller, tricking candidates into choosing the pickup roller for multi-sheet feed issues when the separation pad is the actual culprit.

How to eliminate wrong answers

Option A is wrong because a worn pickup roller typically causes paper to not feed at all or to feed inconsistently, rather than picking up multiple sheets. Option B is wrong because standard 20 lb bond paper is appropriate for most laser printers; thin paper could contribute, but the question specifies standard paper. Option D is wrong because an overheating fuser causes smearing, curling, or fuser jams, not multi-sheet feeding.

Full explanation →

476

MCQhard

A company's network uses a 10.0.0.0/8 private IP scheme. A remote user connects via VPN and gets an IP of 172.16.0.5. They can access the internet but cannot reach internal servers at 10.1.1.50. What is the most likely cause?

A.The internal server's firewall is blocking the VPN IP range.

B.The VPN client is using split tunneling and no route to 10.0.0.0/8 is defined.

C.The VPN server's DHCP scope is exhausted.

D.The user's DNS server is set to a public DNS like 8.8.8.8.

AnswerB

Split tunneling is a VPN configuration where only traffic explicitly destined for corporate networks (defined by routes pushed by the VPN server) traverses the encrypted tunnel. All other traffic, such as general internet browsing, bypasses the VPN. If the VPN server fails to push the necessary route for the company's 10.0.0.0/8 internal subnet, the client's operating system will attempt to route that traffic via its local default gateway, which cannot reach the private corporate network, thus preventing access.

Why this answer

Split tunneling allows the VPN client to send only traffic destined for specific networks through the VPN tunnel, while other traffic goes directly to the internet. If the VPN configuration does not include a route for the 10.0.0.0/8 network, the client will not send packets for 10.1.1.50 through the tunnel, and they will be dropped or routed to the internet, failing to reach internal servers.

Exam trap

220-1201 often tests the difference between split tunneling and full tunneling, tricking candidates into blaming DNS or firewalls when the real issue is a missing route for the internal network.

How to eliminate wrong answers

Option A is wrong because a firewall blocking the VPN IP range would typically block all access, but the user can access the internet, indicating the VPN is up; also, the issue is more likely routing than firewall. Option C is wrong because an exhausted DHCP scope would prevent the user from getting an IP at all, but they have 172.16.0.5. Option D is wrong because public DNS would affect name resolution, but the user is trying to reach an IP address directly, so DNS is not the issue.

Full explanation →

477

MCQeasy

A small business owner wants to set up a network that covers three separate buildings within a 200-meter radius, with no internet access required between them. They need a simple, low-cost solution that can be installed quickly without running cables between buildings. Which network type should be recommended?

A.Wireless Local Area Network (WLAN)

B.Wireless Personal Area Network (WPAN)

C.Metropolitan Area Network (MAN)

D.Wide Area Network (WAN)

AnswerA

A WLAN uses radio links between access points and clients, so no cabling between the three buildings is needed, satisfying the no-cable constraint. Within a 200-metre radius, standard Wi-Fi gear covers all sites cheaply and installs quickly, and it operates independently of any internet connection.

Why this answer

A Wireless Local Area Network (WLAN) is the best choice because it can connect multiple buildings using wireless bridges or mesh networking, covering a 200-meter radius without cables. It is simple, low-cost, and does not require internet access. WPAN (Bluetooth/ZigBee) has too short a range (typically <100m) for inter-building connections.

MAN and WAN are designed for larger geographic areas and often involve higher costs and internet connectivity.

Exam trap

The trap is choosing WPAN due to 'simple low-cost,' but WPAN range is too short. WLAN can be extended with bridges, making it suitable for nearby buildings.

How to eliminate wrong answers

Option A is wrong because a Wireless Local Area Network (WLAN) typically covers a single building or campus with a range of about 100 meters per access point, but it requires a central controller or router and is designed for internet access, which is not needed here. Option C is wrong because a Metropolitan Area Network (MAN) covers a city-wide area (up to 50 km) and involves high-cost infrastructure like fiber or leased lines, which is overkill and not simple or low-cost for a 200-meter radius. Option D is wrong because a Wide Area Network (WAN) spans large geographical areas (e.g., states or countries) using expensive leased lines or satellite links, and it is designed for long-distance connectivity, not a small local setup without internet.

Full explanation →

478

MCQeasy

A marketing department wants to access a shared calendar and document editing tools without installing any software on their local machines. Which cloud service model would best meet this requirement?

A.Infrastructure as a Service (IaaS)

B.Platform as a Service (PaaS)

C.Software as a Service (SaaS)

D.Function as a Service (FaaS)

AnswerC

Software as a Service (SaaS) delivers complete, ready-to-use applications directly to end-users over the internet, typically through a web browser or mobile app. The provider manages all aspects, including the infrastructure, platform, and software itself, requiring no local installation or maintenance from the user. This model perfectly aligns with the marketing department's need for immediate access to a shared calendar without managing any underlying components.

Why this answer

Software as a Service (SaaS) delivers fully managed applications over the internet — such as Microsoft 365 for shared calendars and document editing — with no local installation required. The provider manages the infrastructure, platform, and application, and users access everything through a browser. This exactly matches the marketing department's requirement for calendar and document tools without installing software.

Exam trap

220-1201 often tests the boundary between PaaS and SaaS — candidates must recognize that 'no software installation, ready-to-use application' is the defining characteristic of SaaS, while PaaS is for developers building apps.

How to eliminate wrong answers

Option A is wrong because IaaS provides raw compute, storage, and networking (e.g., Azure VMs) — the customer would still need to install and manage the OS and applications themselves. Option B is wrong because PaaS provides a development and hosting platform (e.g., Azure App Service) for building applications, not ready-to-use end-user productivity software. Option D is wrong because FaaS (e.g., Azure Functions) is a serverless compute model for running event-driven code, not a delivery model for end-user applications like calendars and document editors.

Full explanation →

479

MCQhard

A technician is diagnosing a PC that will not power on. The multimeter shows 0V on all pins of the 24-pin connector when the PSU is plugged in and the power switch is on. What is the most likely cause?

A.The motherboard is shorted, preventing the PSU from starting.

B.The power supply is completely dead and needs replacement.

C.The AC power cord is loose or the wall outlet is dead.

D.The front panel power switch is faulty.

AnswerC

If a multimeter reads 0V on all pins of the PSU's ATX connector, including the critical +5VSB (standby voltage) line, it indicates a complete absence of power reaching the power supply unit. The +5VSB line is always active when the PSU is plugged into a live AC source, even if the PC is 'off.' Therefore, no voltage at all strongly points to an issue with the external AC power delivery, such as a disconnected or faulty power cord, a tripped circuit breaker, or a dead wall outlet, making these the immediate points of investigation.

Why this answer

A completely dead PSU would still typically show standby voltage (+5VSB) on the purple wire of the 24-pin connector when AC is present, so 0V on ALL pins points to no AC input reaching the PSU at all. The most common cause is a loose AC cord or a dead wall outlet, which is why checking those first is the standard troubleshooting step. If AC were present, at minimum the +5VSB standby rail would read ~5V even with the PC powered off.

Exam trap

The trap here is assuming 0V means the PSU is dead, when in fact a truly dead PSU often still shows +5VSB standby voltage; candidates must recognize that 0V on ALL pins including standby indicates no AC input.

How to eliminate wrong answers

Option A is wrong because a motherboard short would trigger the PSU's over-current protection and shut it down, but +5VSB standby voltage would still be present on pin 9 before the short is detected. Option B is wrong because a 'completely dead' PSU is far less likely than a simple AC delivery problem, and a dead PSU would still be diagnosed only after verifying AC input. Option D is wrong because a faulty front panel switch prevents the PSU from being signaled to turn on, but standby voltage (+5VSB) would still be measurable on the 24-pin connector.

Full explanation →

480

MCQeasy

A user reports that their smartphone's screen protector has a large bubble in the center and the edges are lifting. They installed it themselves two days ago. What is the most likely cause of this issue?

A.The screen protector is incompatible with the phone model.

B.The phone's screen has a manufacturing defect.

C.The user did not properly clean the screen before installation.

D.The screen protector is a tempered glass type, which is prone to bubbles.

AnswerC

Microscopic dust particles, oils from fingerprints, or residual moisture left on the smartphone's screen surface before applying the screen protector create physical barriers between the protector's adhesive layer and the glass. These contaminants prevent a complete and uniform bond, leading to trapped air pockets (bubbles) where the adhesive cannot properly adhere, and weakened adhesion along the edges that results in premature lifting. This is the most common cause of such installation failures.

Why this answer

A large central bubble with lifting edges appearing shortly after a self-installation is the classic signature of dust, oil, or debris trapped under the protector because the screen was not properly cleaned. Adhesive cannot bond where contaminants sit, so air and lifting propagate outward from the contaminated area.

Exam trap

220-1201 often tests whether candidates can distinguish installation error from hardware defect — the trap is picking 'incompatible protector' or 'screen defect' when the symptom pattern (central bubble plus lifting edges shortly after self-install) points squarely to surface contamination.

How to eliminate wrong answers

Option A is wrong because an incompatible protector would typically not fit at all — misaligned cutouts, wrong dimensions, or edges that cannot reach the bezel — rather than producing a central bubble on an otherwise fitting protector. Option B is wrong because a manufacturing defect in the phone's screen would manifest as display artifacts, touch failures, or dead pixels, not as an adhesion problem under an aftermarket protector. Option D is wrong because tempered glass protectors are not inherently more bubble-prone than film; bubbles result from installation contamination or trapped air, not from the glass material itself.

Full explanation →

481

MCQeasy

A small office uses an inkjet printer that has started leaving horizontal white lines across printed documents. The printhead cleaning cycle has been run twice without improvement. Which step should be taken next?

A.Replace the ink cartridges

B.Perform a manual printhead cleaning using distilled water or a cleaning solution

C.Adjust the print quality settings to 'Best'

D.Replace the printer

AnswerB

Manual printhead cleaning is a highly effective method for resolving stubborn clogs that automated cleaning cycles often fail to clear. This process typically involves carefully removing the printhead and gently wiping the nozzle plate with a lint-free cloth dampened with distilled water or a specialized cleaning solution. This physical intervention can dissolve dried ink and remove debris, restoring unobstructed ink flow through the nozzles and eliminating print defects like horizontal lines.

Why this answer

When automated printhead cleaning cycles fail to clear horizontal white lines, the nozzles are likely clogged with dried ink that the built-in cycle cannot dislodge. A manual cleaning using distilled water or a dedicated printhead cleaning solution directly dissolves the blockage. This is the standard next step before considering hardware replacement.

Exam trap

The trap here is assuming that any print defect is solved by replacing consumables (ink cartridges), when the actual fault is a mechanical clog requiring manual intervention.

How to eliminate wrong answers

Option A is wrong because replacing ink cartridges does not clear clogs in the printhead nozzles themselves; the issue is mechanical blockage, not ink supply. Option C is wrong because adjusting print quality to 'Best' only changes resolution and ink laydown, not the physical clog causing missing lines. Option D is wrong because replacing the entire printer is a last resort after manual cleaning and other repairs have failed, not the immediate next step.

Full explanation →

482

MCQeasy

A company uses a cloud-based customer relationship management (CRM) application. The vendor handles all updates, security patches, and infrastructure maintenance. Which cloud service model does this represent?

A.Infrastructure as a Service (IaaS)

B.Platform as a Service (PaaS)

C.Software as a Service (SaaS)

D.Desktop as a Service (DaaS)

AnswerC

Software as a Service (SaaS) delivers a complete, ready-to-use application over the internet, managed entirely by a third-party vendor. Users simply access the software via a web browser or client application without needing to manage any underlying infrastructure, operating systems, or application development. This model perfectly aligns with a company utilizing a cloud-based Customer Relationship Management (CRM) system, where the vendor handles all aspects of the application's availability and maintenance.

Why this answer

This scenario describes Software as a Service (SaaS), where the provider delivers a complete application over the internet. The user only needs a web browser and does not manage the underlying OS, servers, or updates. IaaS would give virtual machines, PaaS would provide a development platform, and DaaS would deliver virtual desktops.

Full explanation →

483

MCQhard

A technician is troubleshooting a customer's home network where the desktop PC is wired to the router, but the wireless printer intermittently disappears from the network. The printer is connected via Wi-Fi to the same router. After checking, the technician finds that the printer's IP address is in the 169.254.x.x range. Which network type is the printer attempting to use, and what does this indicate?

A.Peer-to-peer network; the printer is sharing directly with the PC.

B.WLAN with DHCP failure; the printer has self-assigned an APIPA address.

C.PAN network; the printer is using Bluetooth.

D.Ad hoc network; the printer is connecting directly to the PC.

AnswerB

The 169.254.x.x address is APIPA, which Windows self-assigns when DHCP fails, so the printer is on the WLAN without a valid lease. This explains its intermittent disappearance, since it cannot communicate reliably with the router's network.

Why this answer

The 169.254.x.x IP address range is reserved for Automatic Private IP Addressing (APIPA), which a device assigns to itself when it fails to obtain an IP address from a DHCP server. Since the printer is connected via Wi-Fi to the same router, this indicates a DHCP failure on the WLAN, causing the printer to use a self-assigned APIPA address and intermittently disappear from the network.

Exam trap

CompTIA A+ often tests the distinction between APIPA (self-assigned address due to DHCP failure) and other network types like ad hoc or peer-to-peer, where candidates may confuse the symptom of a missing DHCP server with a direct connection topology.

How to eliminate wrong answers

Option A is wrong because a peer-to-peer network involves direct communication between two devices without a central router, but the printer is connected to the router via Wi-Fi, not directly to the PC. Option C is wrong because a PAN (Personal Area Network) typically uses Bluetooth or USB, and the printer is using Wi-Fi, not Bluetooth. Option D is wrong because an ad hoc network is a direct wireless connection between devices without a router, but the printer is connected to the same router, not directly to the PC.

Full explanation →

484

MCQmedium

A user says their monitor suddenly turned off and will not power on. The power LED on the monitor is off. They have checked the power cable and it is securely connected. What should the technician do next?

A.Replace the monitor's internal power supply

B.Test the power outlet with a known-working device

C.Reseat the video cable connecting the monitor to the PC

D.Replace the monitor with a new one

AnswerB

Testing the power outlet with a known-working device, such as a lamp or a phone charger, is the most logical and efficient initial troubleshooting step when a monitor suddenly loses power. This action quickly verifies if the electrical outlet itself is supplying power, ruling out a tripped circuit breaker, a faulty outlet, or a loose wall connection as the root cause. It adheres to the "check the simplest things first" methodology, preventing unnecessary deeper diagnostics.

Why this answer

With the power LED off and the power cable securely connected, the next logical step is to verify the power source. Testing the outlet with a known-working device (e.g., a lamp or another monitor) quickly determines if the outlet is dead, which is a common cause. This is a standard troubleshooting step before replacing hardware.

Exam trap

The trap is jumping to hardware replacement (monitor or power supply) before verifying the power source; always test the outlet first with a known-working device.

How to eliminate wrong answers

Option A is wrong because replacing the internal power supply is premature; you must first rule out the outlet. Option C is wrong because reseating the video cable addresses display signal issues, not power; the LED is off, indicating no power. Option D is wrong because replacing the monitor is a last resort after confirming the outlet and power cable are functional.

Full explanation →

485

MCQmedium

A technician is deploying a wireless network in a large warehouse and needs to ensure seamless roaming for handheld scanners as workers move between access points. Which technology should the technician configure to support this requirement?

A.Enable WPA2-PSK with AES encryption.

B.Set all access points to the same SSID and password.

C.Implement 802.11r Fast Roaming.

D.Use a wireless controller with load balancing.

AnswerC

Implementing 802.11r, also known as Fast Basic Service Set (BSS) Transition, directly addresses the issue of slow roaming by significantly reducing the authentication time required when a client moves between access points within the same network. It achieves this by allowing clients to pre-authenticate or "fast re-associate" with target APs, thereby minimizing the handoff delay and ensuring a much smoother, more seamless connection for mobile devices. This standard is specifically designed to optimize roaming performance for latency-sensitive applications.

Why this answer

802.11r Fast Roaming (also known as Fast BSS Transition) is the correct technology because it reduces the time required for a client device to re-authenticate and reassociate when moving between access points. In a large warehouse with handheld scanners, this minimizes latency and prevents disconnections during active sessions, ensuring seamless roaming. The other options either address security or basic connectivity but do not specifically optimize the handoff process.

Exam trap

The 220-1201 exam often tests the misconception that simply using the same SSID and password (Option B) is sufficient for seamless roaming, but the trap is that this only provides basic connectivity—without a fast roaming protocol like 802.11r, clients still experience noticeable delays during handoffs due to full re-authentication.

How to eliminate wrong answers

Option A is wrong because WPA2-PSK with AES encryption provides security but does not affect roaming speed or handoff efficiency; it only secures the data in transit. Option B is wrong because setting all access points to the same SSID and password is a basic requirement for any roaming network but does not reduce the authentication overhead during transitions; clients still perform a full 802.11 authentication each time. Option D is wrong because a wireless controller with load balancing distributes client associations across APs to avoid congestion, but it does not directly optimize the speed of the roaming handoff; load balancing can even delay roaming if not configured with fast roaming protocols.

Full explanation →

486

MCQeasy

A small office has a single internet connection and needs to provide wired network access to 20 computers. They also need to allow guests to connect wirelessly but keep the guest traffic separate from the internal network. Which single device can handle both wired switching and wireless access with VLAN support?

A.Managed switch

B.Wireless router

C.Wireless access point

D.Hub

AnswerB

A wireless router is the ideal solution for a small office, consolidating the functions of a router, a multi-port switch, and a wireless access point into a single device. It provides NAT and firewall services to connect the internal network to the internet, offers multiple wired Ethernet ports for local devices, and broadcasts a Wi-Fi signal for wireless connectivity, often supporting guest VLANs for enhanced security.

Why this answer

A wireless router (often a small business or SOHO router) integrates a switch, a router, and a wireless access point into one device. It can provide wired switching for the 20 computers and wireless access for guests, and with VLAN support, it can isolate guest traffic from the internal network using 802.1Q tagging or built-in guest network features. This makes it the single device that meets all the requirements.

Exam trap

The trap here is that candidates often confuse a wireless access point (which only bridges wireless to wired) with a wireless router (which includes routing, switching, and wireless), leading them to choose Option C despite its lack of integrated switching and VLAN support.

How to eliminate wrong answers

Option A is wrong because a managed switch can provide wired switching and VLAN support, but it lacks built-in wireless access point functionality, so it cannot serve wireless guests. Option C is wrong because a wireless access point provides wireless connectivity but does not include a wired switch or routing capabilities, and it typically requires an upstream router or switch to handle VLANs and internet access. Option D is wrong because a hub operates at Layer 1 (physical layer), cannot perform switching, does not support VLANs, and cannot provide wireless access, making it completely unsuitable for this scenario.

Full explanation →

487

MCQmedium

A technician is upgrading a server CPU to improve multi-threaded performance for a virtualization host. The current CPU has 8 cores and 16 threads. Which of the following specifications is most important to consider for compatibility?

A.CPU clock speed

B.CPU core count

C.CPU socket type

D.CPU TDP

AnswerC

The CPU socket type is the most critical compatibility factor when upgrading a server CPU because it defines the physical interface and electrical connection between the processor and the motherboard. Each socket, such as LGA 1700 or AM5, has a unique pin layout and retention mechanism. If the new CPU's socket type does not precisely match the motherboard's socket, the processor cannot be physically seated, making any performance considerations like clock speed or core count entirely moot.

Why this answer

The CPU socket type is the most critical compatibility factor because the physical and electrical interface between the CPU and motherboard must match exactly. Even if a CPU has the desired core count or clock speed, it cannot be installed if the socket is incompatible. For a server upgrade, the motherboard's socket (e.g., LGA 4189, SP3) dictates which CPU families are supported, making socket type the primary consideration before other specifications.

Exam trap

The trap here is that candidates often focus on performance metrics like core count or clock speed, overlooking that physical compatibility (socket type) is the fundamental requirement for any CPU upgrade.

How to eliminate wrong answers

Option A is wrong because CPU clock speed affects performance but is not a compatibility requirement; a CPU with a different clock speed can still fit if the socket matches. Option B is wrong because core count is a performance specification, not a compatibility constraint; the motherboard may support various core counts within the same socket. Option D is wrong because TDP (Thermal Design Power) impacts cooling and power delivery, but it is not a compatibility blocker for installation; the system may throttle or require better cooling, but the CPU will still physically fit and function if the socket is compatible.

Full explanation →

488

MCQmedium

A user reports that their computer cannot connect to the internet after being moved to a new office. The computer receives an IP address starting with 169.254.x.x. Which network service is failing to provide a valid IP configuration?

A.DNS

B.DHCP

C.NAT

D.ARP

AnswerB

DHCP (Dynamic Host Configuration Protocol) is the correct answer because it is the network protocol responsible for automatically assigning IP addresses, subnet masks, default gateways, and DNS server information to devices on a network. A 169.254.x.x IP address, known as an APIPA (Automatic Private IP Addressing) address, is self-assigned by the operating system when a DHCP server is unavailable or fails to respond. This clearly indicates a failure in the DHCP process, preventing the computer from obtaining a valid network configuration.

Why this answer

The 169.254.x.x address is an Automatic Private IP Addressing (APIPA) address, assigned by Windows when a DHCP server is unreachable. Since the computer cannot obtain a valid IP configuration from a DHCP server, the DHCP service is failing. DNS, NAT, and ARP do not assign IP addresses dynamically.

Exam trap

A common misconception on the CompTIA A+ exam is that a 169.254.x.x address indicates a DNS failure, but DNS is only involved in name resolution after a valid IP is obtained, not in IP address assignment.

How to eliminate wrong answers

Option A is wrong because DNS resolves domain names to IP addresses, but does not assign IP addresses to clients. Option C is wrong because NAT translates private IP addresses to public ones for internet access, but does not provide initial IP configuration. Option D is wrong because ARP resolves IP addresses to MAC addresses on a local network, but does not assign IP addresses.

Full explanation →

489

MCQmedium

A technician is installing a new M.2 NVMe SSD into a desktop motherboard that has two M.2 slots. After installation, the system boots but the new drive is not detected in the BIOS. What should the technician check first?

A.Update the SSD firmware.

B.Check if the M.2 slot supports NVMe or only SATA.

C.Replace the SSD with a different brand.

D.Disable Secure Boot in the BIOS.

AnswerB

M.2 slots are highly versatile but not universally compatible with all M.2 devices. Some M.2 slots are wired exclusively for SATA communication, while others support PCIe lanes necessary for NVMe SSDs. If an NVMe SSD is installed into a SATA-only M.2 slot, the system's firmware will not be able to detect or communicate with the drive, as the required PCIe interface is absent. Verifying slot compatibility is a crucial initial diagnostic step.

Why this answer

This question tests knowledge of M.2 slot configurations. Some M.2 slots share bandwidth with SATA ports or PCIe lanes, and the motherboard manual specifies which slot supports NVMe.

Full explanation →

490

MCQeasy

A user reports that their new laptop can connect to the office Wi-Fi but cannot access any internet sites. Other devices on the same network work fine. Which tool should be used first to verify the laptop's IP configuration?

A.Ping

B.ipconfig

C.Tracert

D.Netstat

AnswerB

ipconfig displays the laptop's IP address, subnet mask, default gateway and DNS servers, quickly revealing an APIPA address, missing gateway or wrong subnet that would block internet access while Wi-Fi association still succeeds. Other devices working confirms the network itself is fine.

Why this answer

The user's laptop can connect to Wi-Fi but cannot access internet sites, while other devices work fine. This points to a local configuration issue, not a network-wide problem. The `ipconfig` command (or `ifconfig` on Linux/macOS) is the first tool to verify the laptop's IP address, subnet mask, default gateway, and DNS server settings, as a misconfigured IP (e.g., APIPA address 169.254.x.x) or missing gateway would prevent internet access despite a successful Wi-Fi association.

Exam trap

CompTIA often tests the misconception that `ping` is the first troubleshooting step for any connectivity issue, but here the problem is a likely IP misconfiguration (e.g., APIPA or wrong gateway), so `ipconfig` must come first to verify the local stack before testing remote reachability.

How to eliminate wrong answers

Option A is wrong because `ping` tests connectivity to a specific host (e.g., gateway or DNS server) but assumes the IP configuration is already correct; if the laptop has a bad IP, ping will fail without revealing why. Option C is wrong because `tracert` (or `traceroute`) traces the route to a destination and is used after basic connectivity is confirmed, not for initial IP configuration verification. Option D is wrong because `netstat` displays active connections, listening ports, and routing tables, but it does not show the laptop's own IP address or DHCP lease status, making it unsuitable for diagnosing a misconfigured IP.

Full explanation →

491

MCQhard

A technician is servicing a smartphone with a non-functional earpiece speaker during calls, but the loudspeaker works fine. After testing, the earpiece speaker itself is determined to be good. Which component is most likely faulty?

A.The charging port flex cable.

B.The mainboard audio IC (codec).

C.The SIM card slot.

D.The battery connector.

AnswerB

The mainboard audio IC, or codec, is the central component responsible for processing, encoding, decoding, and routing all audio signals within the smartphone. It specifically controls which audio output device—be it the earpiece speaker, the loudspeaker, or a connected headphone jack—receives the sound. If the earpiece is nonfunctional while the loudspeaker operates correctly, it strongly indicates a fault within the audio IC's specific output channel or its control logic for the earpiece, rather than a general audio failure or a physical speaker defect.

Why this answer

Since the earpiece speaker itself is confirmed good, the fault lies in the signal path between the mainboard and the speaker. The audio IC (codec) on the mainboard is responsible for processing and routing the audio signal specifically to the earpiece during calls. A failure in this component would prevent the earpiece from working while the loudspeaker, which uses a separate audio path, remains functional.

Exam trap

The 220-1201 exam often tests the misconception that a non-functional earpiece must be caused by a physical speaker failure, leading candidates to overlook the audio IC as the root cause when the speaker tests good.

How to eliminate wrong answers

Option A is wrong because the charging port flex cable primarily handles charging and data transfer, and does not carry the dedicated audio signal for the earpiece speaker; a fault here would typically affect charging or USB functionality, not the earpiece. Option C is wrong because the SIM card slot is only involved in network authentication and has no role in audio routing or speaker operation. Option D is wrong because the battery connector supplies power to the entire device; a fault here would cause the phone to not power on or shut down unexpectedly, not selectively disable the earpiece while leaving the loudspeaker working.

Full explanation →

492

MCQeasy

A help desk ticket reports that a user's PC fails to boot and emits a series of long beeps. The system has two 8 GB DDR4 modules installed. What is the most likely cause of this issue?

A.The power supply is failing.

B.The CPU is overheating.

C.One of the RAM modules is faulty or not seated properly.

D.The hard drive has failed.

AnswerC

During the Power-On Self-Test (POST), the BIOS/UEFI firmware performs a series of diagnostic checks on essential hardware components. A common and widely recognized POST beep code for a memory error, such as a faulty RAM module or one that is improperly seated in its slot, is a series of long beeps. This specific beep pattern directly indicates that the system has detected an issue with the Random Access Memory (RAM), preventing it from proceeding with the boot process.

Why this answer

A series of long beeps during POST is a classic motherboard beep code indicating a memory (RAM) error. Since the system has two DDR4 modules, the most likely cause is that one module is faulty or has become unseated from its slot, preventing the POST from completing and halting the boot process.

Exam trap

220-1201 often tests whether candidates can distinguish POST beep codes (hardware detection failures like RAM/GPU) from post-POST errors (boot device, OS corruption), causing them to blame the hard drive or PSU.

How to eliminate wrong answers

Option A is wrong because a failing power supply typically causes no power, random shutdowns, or no beep codes at all — not a consistent pattern of long beeps. Option B is wrong because CPU overheating usually triggers thermal shutdowns or continuous/fast beeps depending on the BIOS, and the system would often boot briefly before shutting down. Option D is wrong because a failed hard drive produces errors like 'No boot device found' or 'Operating system not found' after POST completes, not beep codes during POST.

Full explanation →

493

MCQmedium

A company's web server is accessible from the internet, but users report that they cannot upload files to it using a web browser. The server is configured to allow file uploads via HTTP. Which protocol is most likely being blocked by the firewall?

A.HTTPS

B.FTP

C.HTTP

D.SMTP

AnswerC

HTTP (Hypertext Transfer Protocol) operates on port 80 and is the foundational protocol for the World Wide Web, governing how web browsers and servers communicate. Many web-based file upload mechanisms, especially older ones or those not strictly enforcing HTTPS for all transactions, rely on HTTP POST requests. If port 80 is blocked by a firewall or network configuration, or if the HTTP service itself is misconfigured, web-based uploads would fail even if the web server is otherwise accessible for browsing via HTTPS (port 443). This selective blocking explains why access might work, but uploads do not.

Why this answer

The question states that the server is configured to allow file uploads via HTTP, yet users cannot upload files using a web browser. Since HTTP (port 80) is the protocol used for web browser uploads, the firewall is most likely blocking HTTP traffic. If HTTP were allowed, the uploads would succeed; the symptom points directly to HTTP being blocked.

Exam trap

A common pitfall in CompTIA A+ exams is to think that HTTPS is required for secure uploads, but the question explicitly states the server is configured for HTTP, so blocking HTTPS is irrelevant; the trap is confusing the protocol used for uploads (HTTP) with its secure variant (HTTPS).

How to eliminate wrong answers

Option A is wrong because HTTPS (port 443) is a secure version of HTTP used for encrypted web traffic, but the server is configured for HTTP uploads, not HTTPS; blocking HTTPS would not affect HTTP uploads. Option B is wrong because FTP (ports 20/21) is a separate file transfer protocol not used by web browsers for HTTP-based uploads; blocking FTP does not impact HTTP upload functionality. Option D is wrong because SMTP (port 25) is used for email transmission, not for web browser file uploads; blocking SMTP has no effect on HTTP uploads.

Full explanation →

494

MCQmedium

A user reports that their inkjet printer makes a loud grinding noise when printing, and the paper feeds crookedly. Which component is most likely failing?

A.The printhead assembly.

B.The paper feed rollers.

C.The ink cartridges.

D.The printer's main logic board.

AnswerB

Worn, dirty, or misaligned paper feed rollers are a common cause of grinding noises and skewed paper feeding in inkjet printers. Over time, the rubber on these rollers can degrade, become slick with paper dust and ink residue, or lose its grip, leading to the paper slipping as it attempts to move through the printer. This slippage, combined with the motor still trying to rotate the rollers, creates a distinct grinding sound and can pull the paper unevenly, resulting in skewed output.

Why this answer

Crooked paper feeding combined with a loud grinding noise points to mechanical wear in the paper feed path. The paper feed rollers (pickup, separation, and feed rollers) grip and advance paper; when they are worn, glazed, or misaligned, paper skews and the gears driving them grind. This is a classic hardware symptom, not an ink or electronics issue.

Exam trap

220-1201 often tests whether candidates can map a symptom to the correct subsystem — grinding plus skew is mechanical (rollers), while grinding alone during head movement would point to the carriage/belt.

How to eliminate wrong answers

Option A is wrong because a failing printhead assembly causes print quality problems (missing lines, clogs, banding), not paper feed skew or grinding. Option C is wrong because ink cartridges affect output color and coverage; a low or faulty cartridge does not cause mechanical grinding or misfeeds. Option D is wrong because a failing main logic board typically causes the printer to not power on, throw error codes, or fail to communicate — not mechanical noise during paper transport.

Full explanation →

495

MCQhard

A technician is deploying a new server that requires RAID 10 for data redundancy and performance. The motherboard has an onboard RAID controller. After configuring the RAID array in the UEFI RAID utility, the technician installs the OS, but the RAID volume is not visible in the OS installer. What is the most likely cause?

A.The RAID array was not properly initialized in the UEFI RAID utility.

B.The SATA mode is set to AHCI instead of RAID in the UEFI.

C.The UEFI boot mode is set to Legacy, which does not support RAID.

D.The RAID driver is missing from the OS installation media.

AnswerD

The RAID driver is absolutely essential for the operating system installer to recognize and interact with the RAID controller and the logical volume it presents. Without the specific driver for the server's RAID controller, the generic OS installation media lacks the necessary instructions to communicate with the hardware. Consequently, the installer will not detect any available storage devices, preventing the installation of the operating system onto the configured RAID array.

Why this answer

The RAID volume is configured in the UEFI RAID utility, but the OS installer cannot see it because the installer lacks the driver for the onboard RAID controller. During Windows installation, the setup environment only includes drivers for common storage controllers; if the RAID controller is not natively supported, the volume will not appear until the driver is loaded. The technician must provide the driver via USB or other media during installation.

Exam trap

The trap here is assuming that if the RAID array is configured in UEFI, the OS installer will automatically detect it; however, the installer often lacks the necessary driver, leading candidates to overlook the missing driver option.

How to eliminate wrong answers

Option A is wrong because if the array were not initialized, the UEFI RAID utility would typically show the array as uninitialized or not allow it to be used, but the scenario states the array was configured and the OS was installed, implying initialization occurred. Option B is wrong because if SATA mode were set to AHCI, the RAID array would not be visible in the UEFI RAID utility at all, and the technician would not have been able to configure it. Option C is wrong because Legacy boot mode does support RAID; the boot mode affects how the OS boots, not whether RAID is supported, and many systems use Legacy boot with RAID successfully.

Full explanation →

496

MCQmedium

A technician is troubleshooting a desktop that randomly restarts under heavy load. They suspect the RAM is overheating. What type of RAM cooling solution is most commonly integrated into high-performance memory modules?

A.Liquid cooling loops attached to the RAM sticks.

B.Heat spreaders (metal fins) on the modules.

C.Small fans mounted directly above the RAM slots.

D.Thermal pads that connect RAM to the motherboard heatsink.

AnswerB

Heat spreaders are metallic fins, often aluminum, that encase the RAM modules to increase their surface area. This design facilitates passive heat dissipation away from the integrated circuits, effectively lowering the operating temperature of the memory chips. By preventing the RAM from overheating, heat spreaders are a standard and effective solution to maintain system stability and prevent issues like random restarts caused by thermal throttling or memory errors.

Why this answer

High-performance memory modules most commonly integrate metal heat spreaders — aluminum or copper fins bonded to the DIMM — to dissipate heat generated during heavy load. These spreaders increase surface area and conduct heat away from the DRAM chips, addressing the overheating that can cause random restarts. This is the standard, factory-integrated cooling solution on gaming and workstation RAM.

Exam trap

220-1201 often tests the confusion between integrated module cooling (heat spreaders) and aftermarket or exotic solutions (fans, liquid loops) that are not standard on memory modules.

How to eliminate wrong answers

Option A is wrong because liquid cooling loops attached directly to RAM sticks exist only in exotic custom builds and are not commonly integrated into memory modules. Option C is wrong because small fans mounted above RAM slots are aftermarket accessories, not integrated into the modules themselves. Option D is wrong because thermal pads connecting RAM to the motherboard heatsink are not a standard RAM cooling design; DIMMs sit in slots and do not make that kind of contact.

Full explanation →

497

MCQhard

A network administrator is configuring a small business network with two subnets: 192.168.1.0/24 for employees and 192.168.2.0/24 for guests. The router has two LAN interfaces with IPs 192.168.1.1 and 192.168.2.1. A technician connects a new access point to the guest subnet switch and configures it with a static IP of 192.168.2.50. The access point can ping the router's guest interface but cannot reach the internet. The router's default route points to an ISP modem at 203.0.113.1. What is the most likely missing configuration?

A.The access point's default gateway is set to 192.168.1.1.

B.NAT is not enabled for the 192.168.2.0/24 subnet on the router.

C.The access point has a duplicate IP address.

D.The ISP modem is blocking traffic from the guest subnet.

AnswerB

Network Address Translation (NAT) is a critical router function that translates private IP addresses from internal networks, such as the 192.168.2.0/24 guest subnet, into a single public IP address for internet access. Without NAT enabled for this specific subnet, the router will drop or fail to forward packets originating from guest devices to the internet because they lack a valid public source IP. This precisely explains why guest devices cannot reach the internet, while employee devices, presumably with NAT configured, can.

Why this answer

The access point can ping the router's guest interface (192.168.2.1), confirming Layer 2 and Layer 3 connectivity within the guest subnet. However, it cannot reach the internet, which indicates that the router is not performing Network Address Translation (NAT) for the 192.168.2.0/24 subnet. Without NAT, private IP addresses from the guest subnet are not translated to the router's public IP, so the ISP modem drops the return traffic because it has no route back to the private range.

Exam trap

The 220-1201 exam often tests the misconception that a successful ping to the default gateway implies full internet connectivity, when in fact NAT misconfiguration is the hidden culprit that breaks traffic beyond the local router.

How to eliminate wrong answers

Option A is wrong because the access point's default gateway should be the router's guest interface (192.168.2.1), not the employee subnet interface (192.168.1.1); setting it to 192.168.1.1 would break local subnet routing and still not fix internet access. Option C is wrong because a duplicate IP address would cause connectivity issues within the guest subnet, but the access point can successfully ping the router's guest interface, ruling out an IP conflict. Option D is wrong because the ISP modem is not blocking traffic based on source subnet; it simply routes packets to the router's public IP, and the problem is that the router fails to translate private guest IPs before sending them upstream.

Full explanation →

498

MCQeasy

A customer reports that their new VoIP phone cannot register with the company's call server, but their computer on the same switch port works fine. The network uses VLANs for voice and data traffic. Which protocol must be configured on the switch port to separate the voice traffic from the data traffic?

A.DHCP

B.802.1Q

C.DNS

D.ARP

AnswerB

802.1Q is the IEEE standard for Virtual Local Area Networks (VLANs) that defines how to insert a 4-byte tag into an Ethernet frame header. This tag contains a VLAN ID, allowing a single physical network interface or switch port to carry traffic for multiple logical VLANs. For a VoIP phone, 802.1Q tagging is essential for segregating voice traffic into a dedicated VLAN, often with Quality of Service (QoS) priority, from general data traffic on the same physical cable, ensuring proper call quality and network segmentation.

Why this answer

802.1Q is the IEEE standard for VLAN tagging, which allows a single switch port to carry traffic for multiple VLANs. In this scenario, the switch port must be configured as an 802.1Q trunk or use a voice VLAN feature that tags VoIP traffic with a specific VLAN ID, separating it from the untagged data traffic. This ensures the VoIP phone can communicate with the call server on its designated voice VLAN while the computer continues to work on the data VLAN.

Exam trap

The CompTIA A+ exam often tests the distinction between protocols that manage traffic (like DHCP) and protocols that separate traffic (like 802.1Q), leading candidates to mistakenly choose DHCP because it is commonly associated with VoIP phone configuration.

How to eliminate wrong answers

Option A (DHCP) is wrong because DHCP is used to dynamically assign IP addresses and other network parameters, not to separate voice and data traffic on a VLAN. Option C (DNS) is wrong because DNS resolves hostnames to IP addresses and has no role in VLAN tagging or traffic separation. Option D (ARP) is wrong because ARP resolves IP addresses to MAC addresses within a broadcast domain and does not provide VLAN segmentation or tagging.

Full explanation →

499

MCQmedium

A technician is troubleshooting a desktop PC that powers on but shows no display on the monitor. The monitor's power LED is amber (standby). The PC has an integrated GPU and a discrete GPU. Which step should be taken FIRST to isolate the issue?

A.Reseat the RAM modules

B.Check that the monitor cable is plugged into the discrete GPU, not the motherboard

C.Replace the CMOS battery

D.Test the monitor on another computer

AnswerB

This is the most common cause of a "no signal" message when a desktop PC powers on but shows no display. When a dedicated (discrete) graphics card is installed in a PCIe slot, the system's BIOS/UEFI typically disables the integrated graphics ports on the motherboard to prioritize the discrete GPU. Connecting the monitor cable to the motherboard's video output instead of the discrete card's ports will result in no video signal being sent to the monitor, even though the PC is otherwise functioning.

Why this answer

When a desktop has both integrated and discrete GPUs and the monitor shows no signal (amber standby LED), the most common cause is that the video cable is connected to the motherboard's integrated GPU output while the system is configured to use the discrete GPU, or vice versa. Checking that the cable is plugged into the discrete GPU first is the fastest, least invasive isolation step and directly addresses the most likely cause of no display.

Exam trap

220-1201 often tests the dual-GPU display trap — candidates jump to RAM or monitor replacement when the simplest and most likely cause is a cable connected to the wrong GPU output.

How to eliminate wrong answers

Option A is wrong because reseating RAM is a valid troubleshooting step for no-POST issues, but it is more invasive and less likely to be the cause when the monitor LED indicates standby (no signal) rather than a POST failure. Option C is wrong because a dead CMOS battery typically causes BIOS settings loss and clock issues, not a complete absence of display on a system that powers on. Option D is wrong because testing the monitor on another computer is a valid step but is more time-consuming and less likely to be the root cause than a misconnected cable on a dual-GPU system.

Full explanation →

500

MCQhard

A technician upgrades a workstation from Windows 10 to Windows 11, but the installation fails with an error that the system does not support TPM 2.0. The CPU is compatible. What must the technician do in UEFI to resolve this?

A.Enable Secure Boot and set it to Windows UEFI mode

B.Enable the TPM device in UEFI security settings

C.Disable CSM and set boot mode to UEFI only

D.Update the UEFI firmware to the latest version

AnswerB

Windows 11 mandates the presence and activation of a Trusted Platform Module (TPM) version 2.0 for installation and operation, a requirement designed to enhance system security through hardware-based cryptographic functions. If the workstation's UEFI/BIOS settings have the TPM device disabled, the Windows 11 installer will halt with an error, preventing the upgrade. Enabling the TPM in the security section of the UEFI firmware settings directly resolves this specific prerequisite.

Why this answer

Windows 11 requires TPM 2.0. If the CPU is compatible but the installation fails due to TPM, the most likely cause is that the TPM device is disabled in UEFI. Enabling the TPM in UEFI security settings will allow the installation to proceed.

Exam trap

220-1201 often tests the specific UEFI settings required for Windows 11, and candidates may confuse TPM with Secure Boot or UEFI mode, leading them to choose incorrect settings.

How to eliminate wrong answers

Option A is wrong because Secure Boot and UEFI mode are separate requirements and do not enable TPM. Option C is wrong because disabling CSM and setting UEFI only is about boot mode, not TPM. Option D is wrong because updating firmware might be necessary but is not the direct fix for a disabled TPM.

Full explanation →

501

MCQhard

A company uses a proxy server for internet access. Users report that they can access internal websites but cannot reach external sites. The proxy server's IP is configured in the browser settings. Which network service is most likely failing?

A.DNS

B.DHCP

C.Proxy server

D.NAT

AnswerC

A proxy server acts as an intermediary for requests from clients seeking resources from other servers, particularly for internet access. When a company uses a proxy for internet access, all outbound requests to external websites are explicitly routed through it. If the proxy server is offline, misconfigured, or experiencing issues, it will fail to forward these external requests, preventing users from reaching the internet while their ability to access internal network resources remains unimpaired. This specific symptom directly points to the proxy as the single point of failure for external connectivity.

Why this answer

The proxy server is configured in the browser settings, but users can reach internal websites (which bypass the proxy) while failing to reach external sites (which require the proxy). This indicates the proxy server itself is not functioning or unreachable, as it is the designated intermediary for external traffic. DNS, DHCP, and NAT would affect both internal and external access if they were failing, so the proxy server is the most likely culprit.

Exam trap

CompTIA often tests the distinction between a proxy server failure and a DNS failure, where candidates mistakenly think DNS is the issue because external sites fail, but the key clue is that internal sites are accessible, which would not be the case if DNS were broken.

How to eliminate wrong answers

Option A is wrong because DNS resolves domain names to IP addresses; if DNS were failing, users would not be able to resolve internal or external hostnames, but they can access internal websites, so DNS is working. Option B is wrong because DHCP assigns IP addresses and other network configuration; if DHCP were failing, users would likely have no network connectivity at all, not just an inability to reach external sites. Option D is wrong because NAT translates private IP addresses to public IP addresses for internet access; if NAT were failing, all internet-bound traffic would fail, but internal access would still work, yet the symptom is specific to external sites accessed through the proxy, not a general NAT failure.

Full explanation →

502

MCQhard

A network administrator is troubleshooting a slow connection between two buildings connected by a fiber optic link. The link is up but throughput is lower than expected. Which tool should be used to measure the exact signal loss in the fiber?

A.Multimeter

B.Tone generator

C.OTDR

D.Wi-Fi analyzer

AnswerC

An OTDR (Optical Time-Domain Reflectometer) injects light pulses into the fibre and measures backscattered reflections, pinpointing attenuation and loss at specific distances along the link. This directly satisfies the stem's requirement to measure exact signal loss, unlike throughput or connectivity tools that cannot quantify optical attenuation.

Why this answer

An Optical Time-Domain Reflectometer (OTDR) is the correct tool because it sends a series of optical pulses into the fiber and measures the backscattered and reflected light to calculate the exact signal loss (attenuation) at specific points along the link. This allows the administrator to identify splices, bends, or connectors causing excessive loss, which directly explains the low throughput despite the link being up.

Exam trap

The trap here is that candidates confuse a 'link being up' with 'no signal loss,' leading them to overlook the need for an OTDR and instead choose a multimeter or tone generator, which are irrelevant to fiber optics.

How to eliminate wrong answers

Option A is wrong because a multimeter measures electrical properties like voltage, current, and resistance, not optical signal loss in fiber. Option B is wrong because a tone generator is used for tracing copper cables (e.g., twisted pair or coaxial) by injecting an audible signal, and it cannot measure optical loss. Option D is wrong because a Wi-Fi analyzer measures wireless signal strength, channel interference, and spectrum usage in RF environments, not fiber optic signal loss.

Full explanation →

503

MCQeasy

A user complains that their external USB hard drive is not recognized when plugged into a Windows 10 workstation. The technician checks Device Manager and sees an unknown device with a yellow exclamation mark. What should the technician do first?

A.Replace the USB cable.

B.Update the driver for the unknown device.

C.Format the external drive.

D.Disable the USB root hub in Device Manager.

AnswerB

Updating the driver for the unknown device is the correct course of action because the yellow exclamation mark signifies that Windows recognizes the device's presence but lacks the necessary software instructions (the driver) to operate it correctly. Installing or updating to the proper driver provides the operating system with the specific protocols and commands required to interface with the external hard drive, allowing it to function as intended and resolve the 'unknown device' status.

Why this answer

When Device Manager shows an unknown device with a yellow exclamation mark, Windows has detected the hardware but cannot identify it or load a compatible driver. The first corrective action is to update or install the correct driver for that unknown device, which resolves the identification and functionality issue. This is the standard first step before considering hardware replacement or destructive actions.

Exam trap

The trap here is that candidates may jump to physical hardware solutions like replacing the cable or formatting the drive, but the yellow exclamation mark specifically points to a driver-level issue, not a hardware or file system problem.

How to eliminate wrong answers

Option A is wrong because replacing the USB cable is a physical troubleshooting step that would not resolve a driver identification issue shown in Device Manager. Option C is wrong because formatting the external drive is a destructive action that would erase data and does not address the missing driver. Option D is wrong because disabling the USB root hub would disable the USB port entirely, making the drive even less accessible and potentially affecting other USB devices.

Full explanation →

504

MCQhard

A customer calls stating that their Android phone's messaging app is not receiving SMS messages from one specific contact, but all other contacts work. The phone has good signal strength. What is the most likely cause?

A.The phone's SIM card is damaged.

B.The contact's number is blocked in the messaging app.

C.The messaging app has a corrupted database.

D.The carrier is experiencing an outage in the area.

AnswerB

When a contact's number is blocked within the messaging application, the app is specifically configured to filter out and suppress incoming messages originating from that particular sender. This action is an application-level setting that prevents only the blocked contact's messages from appearing in the user's inbox, while all other SMS functionality and messages from unblocked contacts remain fully operational.

Why this answer

The most likely cause is that the contact's number has been blocked in the messaging app. Blocking a contact prevents SMS messages from that specific number from being delivered to the inbox, while all other contacts continue to work normally. This matches the symptom of a single contact failing to send SMS, with good signal strength and no carrier-wide issues.

Exam trap

CompTIA A+ often tests the distinction between device-level blocking (which affects only one contact) and carrier or SIM issues (which affect all contacts), leading candidates to incorrectly choose a global cause like a damaged SIM or carrier outage.

How to eliminate wrong answers

Option A is wrong because a damaged SIM card would typically cause a complete loss of cellular service or inability to send/receive any SMS, not a single-contact issue. Option C is wrong because a corrupted database would likely affect all messages or cause the app to crash, not selectively block one contact. Option D is wrong because a carrier outage would prevent SMS from all contacts, not just one specific contact.

Full explanation →

505

MCQmedium

A user's laptop connects to the office Wi-Fi but cannot access the internet. Other devices on the same network work fine. The laptop's IP address is 169.254.25.14. What is the most likely cause?

A.The DNS server is unreachable.

B.The laptop's wireless adapter driver is corrupted.

C.The DHCP server is not responding or the laptop cannot reach it.

D.The SSID is hidden and requires manual entry.

AnswerC

The 169.254.25.14 address is an APIPA self-assigned address, generated when the client receives no DHCP lease. Other devices working confirms the network is fine, isolating the fault to DHCP reachability or server response for this laptop.

Why this answer

The IP address 169.254.25.14 falls within the Automatic Private IP Addressing (APIPA) range (169.254.0.0/16), which Windows assigns when a DHCP client fails to receive an IP lease from a DHCP server. Since other devices on the same network work fine, the issue is isolated to this laptop's inability to communicate with the DHCP server, not a network-wide outage. This makes option C correct.

Exam trap

The trap here is that candidates often confuse DHCP failure symptoms with DNS failure, but CompTIA A+ specifically tests the APIPA address as a clear indicator of DHCP failure, not DNS or driver issues.

How to eliminate wrong answers

Option A is wrong because a DNS server being unreachable would still allow the laptop to obtain a valid DHCP lease (e.g., 192.168.x.x) and would not result in an APIPA address; DNS issues cause name resolution failures, not IP assignment failures. Option B is wrong because a corrupted wireless adapter driver would typically prevent the laptop from connecting to the Wi-Fi at all, or cause intermittent disconnections, not allow a successful association with an APIPA address. Option D is wrong because a hidden SSID requires manual entry of the network name, but once configured correctly, the laptop would still obtain a valid IP from DHCP; a hidden SSID does not cause APIPA addressing.

Full explanation →

506

MCQmedium

During a network upgrade, a technician replaces an old 10/100 Mbps switch with a new gigabit switch. After the change, several users report that their internet connection is slow. The technician checks the switch and sees that some ports show 100 Mbps instead of 1000 Mbps. What is the most likely cause?

A.The switch ports are configured for half-duplex

B.The Ethernet cables are Cat5 instead of Cat5e or Cat6

C.The connected devices have 10/100 Mbps NICs

D.The switch has a faulty power supply causing reduced performance

AnswerC

Ethernet devices utilize an auto-negotiation process to establish the highest common operating speed and duplex mode between two connected ports. If the network interface card (NIC) in a connected device is only capable of 10 Mbps or 100 Mbps, even when connected to a gigabit-capable switch port, the auto-negotiation will successfully establish a link at the maximum speed supported by the least capable device, which is 100 Mbps in this scenario. This directly explains the observed consistent 100 Mbps link speed.

Why this answer

The most likely cause of the switch ports operating at 100 Mbps instead of 1000 Mbps is that the connected devices have 10/100 Mbps NICs. Gigabit Ethernet requires both the switch port and the connected device to support 1000BASE-T; if the NIC only supports 10/100, the switch will auto-negotiate down to the highest common speed, which is 100 Mbps. This explains why only some users experience slowness—those with older NICs are limited to 100 Mbps while others with gigabit-capable NICs get full speed.

Exam trap

A common misconception is that cable category (Cat5 vs. Cat5e) is the primary cause of speed negotiation failures, but in reality, the most common cause is the endpoint NIC's capability, as auto-negotiation will still attempt gigabit over Cat5 and only fall back if the cable fails or the NIC doesn't support it.

How to eliminate wrong answers

Option A is wrong because half-duplex configuration would cause collisions and performance issues, but the symptom of ports showing 100 Mbps instead of 1000 Mbps is a speed negotiation issue, not a duplex mismatch; modern switches auto-negotiate duplex as well, and half-duplex at 100 Mbps would still show 100 Mbps, not 1000 Mbps. Option B is wrong because Cat5 cable is technically rated for 1000BASE-T up to 100 meters (though Cat5e or Cat6 is recommended for better margin); if the cable were the issue, the link would likely fail to establish or show errors, not consistently negotiate to 100 Mbps—auto-negotiation would still attempt 1000 Mbps and only fall back if the cable fails the link integrity test, which is less common than a NIC limitation. Option D is wrong because a faulty power supply would typically cause intermittent connectivity, port flapping, or complete switch failure, not a consistent speed downgrade to 100 Mbps on specific ports; the power supply issue would affect all ports or the entire switch, not just a subset.

Full explanation →

507

MCQeasy

A user complains that their smartphone's screen protector has started peeling off at the edges after a few weeks. They installed it themselves. What is the most likely cause of this problem?

A.The screen protector is of low quality and does not fit the device model.

B.The user did not clean the screen properly before installation, leaving dust or oil.

C.The smartphone case is too tight and pushes the protector off.

D.The device's screen has a factory oleophobic coating that repels the adhesive.

AnswerB

Adhesive failure at the edges stems from contamination trapped beneath the film. Dust, oil or fingerprints left on the glass prevent proper bonding, so the protector lifts after normal handling. Cleaning with an alcohol wipe before application avoids this.

Why this answer

Improper cleaning leaves dust, oil, or debris on the screen, which creates microscopic gaps between the adhesive and the glass. These contaminants prevent full adhesion, causing the edges to lift over time as the protector is subjected to daily handling and temperature changes.

Exam trap

CompTIA A+ often tests the misconception that peeling is caused by product quality or case interference, when the real culprit is improper surface preparation—a common real-world mistake that candidates overlook because they assume the user followed instructions correctly.

How to eliminate wrong answers

Option A is wrong because low-quality protectors may have poor adhesive or inaccurate cutouts, but the symptom of peeling at the edges after a few weeks is more characteristic of contamination during installation rather than inherent quality issues. Option C is wrong because a tight case might apply pressure to the edges, but it would typically cause cracking or lifting immediately, not gradual peeling over weeks, and most cases are designed to avoid interfering with screen protectors. Option D is wrong because factory oleophobic coatings are designed to reduce fingerprints and do not repel adhesive; in fact, most screen protectors are engineered to bond with such coatings, and peeling due to coating incompatibility would appear immediately, not after weeks.

Full explanation →

508

MCQmedium

A company's internal DNS server is not resolving hostnames for clients. The technician verifies that the DNS service is running and the firewall allows traffic on port 53. However, clients still cannot resolve names. What is the most likely issue?

A.The firewall is blocking UDP port 53

B.The DNS server is using port 5353 instead of 53

C.The firewall is blocking TCP port 53

D.Clients are using the wrong DNS server IP

AnswerC

While most initial DNS queries use UDP port 53, TCP port 53 is essential for specific DNS operations, particularly zone transfers between DNS servers and for DNS responses that exceed the typical 512-byte UDP packet limit. If a firewall blocks TCP port 53, clients might experience intermittent or complete hostname resolution failures when querying for large records (e.g., DNSSEC records, multiple SRV records) or when the DNS server needs to perform a zone transfer to update its own records, leading to stale or missing entries.

Why this answer

DNS uses both UDP and TCP on port 53. While initial queries typically use UDP, responses that are truncated (e.g., due to large DNSSEC records or many resource records) require TCP to complete the resolution. Since the technician verified that the firewall allows traffic on port 53 (likely only UDP) and the DNS service is running, the most likely issue is that the firewall is blocking TCP port 53, preventing the fallback TCP connection needed for successful name resolution.

Exam trap

CompTIA often tests the misconception that DNS only uses UDP port 53, leading candidates to overlook the necessity of TCP port 53 for truncated responses and zone transfers.

How to eliminate wrong answers

Option A is wrong because the technician already verified that the firewall allows traffic on port 53, which typically includes UDP; blocking UDP port 53 would have been caught by that check. Option B is wrong because if the DNS server were using port 5353 instead of 53, clients would not be able to reach it at all, and the technician would have noticed the service not listening on the standard port. Option D is wrong because the question states that clients cannot resolve names, but the technician verified the DNS service is running and the firewall allows port 53 traffic; if clients were using the wrong DNS server IP, they would likely get no response or a timeout, but the scenario points to a specific protocol-level blockage rather than a misconfiguration of client settings.

Full explanation →

509

MCQmedium

A user reports that their external hard drive, formatted as NTFS, is not showing up in Windows Explorer but is visible in Disk Management as 'Not Initialized'. The drive was working yesterday. What is the most likely cause?

A.The USB cable is defective.

B.The drive's partition table is corrupted.

C.The drive needs a new driver.

D.The drive has a physical head crash.

AnswerB

A corrupted partition table, such as a damaged Master Boot Record (MBR) or GUID Partition Table (GPT), prevents the operating system from recognizing any existing partitions or file systems on the drive. When Windows cannot read this critical structural information, it often presents the drive as "Not Initialized" or "Unallocated Space" in Disk Management, prompting the user to initialize and then format it. This scenario perfectly aligns with a user reporting their drive "formatted," implying it lost its data structure.

Why this answer

When a drive appears in Disk Management as 'Not Initialized,' Windows can see the physical disk but cannot read a valid partition table (MBR or GPT) on it. Since the drive worked yesterday and is now visible at the hardware level, the most likely cause is corruption of the partition table rather than a hardware failure. Initializing the disk would write a new partition table, but data recovery should be attempted first because initialization can destroy recoverable partition metadata.

Exam trap

220-1201 often tests the distinction between a disk that is detected but uninitialized (partition table corruption, recoverable) and a disk that is not detected at all (cable, driver, or hardware failure), tempting candidates to jump to hardware causes.

How to eliminate wrong answers

Option A is wrong because a defective USB cable would typically cause the drive to disappear entirely from Disk Management or produce intermittent connection errors, not present as a detected-but-uninitialized disk. Option C is wrong because a missing or outdated driver would prevent the device from being recognized at all, or show it under 'Other devices' with a warning icon, not as an uninitialized disk. Option D is wrong because a physical head crash usually produces clicking noises, I/O errors, and often no detection at all; a head crash would not typically leave the disk visible and merely uninitialized, and it is far less likely than partition table corruption given the drive worked the previous day.

Full explanation →

510

MCQmedium

A user reports that the multifunction printer is producing copies with a faint vertical line running down the entire page. The line appears in the same position on every copy, but printed documents from a PC do not have the line. What is the most likely cause?

A.The toner cartridge is defective and needs replacement.

B.The printer's fuser unit is damaged.

C.The scanner glass or scanning strip has a scratch or debris.

D.The network cable is faulty.

AnswerC

When a multifunction printer performs a copy operation, it first uses its integrated scanner to create a digital image of the original document. Any physical imperfection, such as a scratch, dust, or debris on the flatbed scanner glass or the automatic document feeder's scanning strip, will be captured by the optical sensor. This imperfection is then faithfully reproduced as a consistent vertical line on the printed copy, as it directly affects the input image data before it reaches the printing engine.

Why this answer

A faint vertical line that appears only on copies and not on printed documents from a PC points to the scanning path, not the print engine. A scratch or debris on the scanner glass or the scanning strip (the narrow glass used by the automatic document feeder) would cause a consistent vertical line on every scanned copy. Since PC prints bypass the scanner, they are unaffected, confirming the scanner as the source.

Exam trap

The trap is assuming any print quality issue is related to the print engine (toner, fuser) when the symptom is isolated to copies, which points to the scanner path.

How to eliminate wrong answers

Option A is wrong because a defective toner cartridge would affect printed output from the PC as well, producing lines or streaks on all prints, not just copies. Option B is wrong because a damaged fuser unit would also impact PC prints and typically causes smudging, not a sharp vertical line only on copies. Option D is wrong because a faulty network cable would cause connectivity issues or failed print jobs, not a consistent vertical line on scanned copies.

Full explanation →

511

MCQmedium

A customer reports that their external USB 3.0 hard drive is only achieving transfer speeds of about 35 MB/s, far below the expected 5 Gbps. The drive is connected to a USB 3.0 port on the front of the computer case. What is the most likely cause of this performance issue?

A.The drive is formatted with FAT32 instead of NTFS.

B.The front-panel USB port is internally connected to a USB 2.0 header on the motherboard.

C.The hard drive is failing and needs to be replaced.

D.The USB 3.0 driver is not installed in the operating system.

AnswerB

When a USB 3.0 external hard drive is connected to a USB 2.0 port, the connection automatically defaults to the slower USB 2.0 standard. USB 2.0 has a maximum theoretical transfer rate of 480 Mbps (Megabits per second), which translates to approximately 35-40 MB/s (Megabytes per second) in real-world scenarios due to protocol overhead. Therefore, a consistent transfer speed of 35 MB/s strongly indicates that the USB 3.0 device is operating in USB 2.0 compatibility mode, most likely due to being plugged into a front-panel port wired to a USB 2.0 header.

Why this answer

This question tests understanding of USB standards and cable/connector compatibility. USB 3.0 (5 Gbps) requires a cable with 9 pins, but if the case's front-panel header or cable is wired for USB 2.0 only (4 pins), the device will fall back to USB 2.0 speeds (480 Mbps, ~35 MB/s). The correct answer is that the front-panel USB port is internally connected to a USB 2.0 header.

Full explanation →

512

MCQmedium

A technician is troubleshooting a connectivity issue where a user's computer can ping the default gateway but cannot access a web server at 203.0.113.50. The technician runs a tracert and sees that the first hop responds, but subsequent hops time out. What is the most likely cause?

A.The default gateway is down.

B.The web server is offline.

C.A router along the path is misconfigured or dropping packets.

D.The user's computer has a duplicate IP address.

AnswerC

This is the most likely cause. If the first hop (the default gateway) responds successfully, but subsequent hops in a traceroute operation time out, it indicates that traffic is leaving the local network but failing to reach further destinations. This pattern strongly suggests an issue with a router or firewall beyond the local segment, such as incorrect routing table entries, an access control list (ACL) blocking ICMP traffic, or a device experiencing excessive load and dropping packets.

Why this answer

The tracert output shows the first hop (the default gateway) responds, confirming the user's computer can reach the local network. The subsequent timeouts indicate that packets are being dropped or discarded beyond the gateway, which points to a misconfigured router or a router along the path that is dropping packets (e.g., due to an ACL, routing loop, or MTU issue). This explains why the user can ping the gateway but cannot reach the web server at 203.0.113.50.

Exam trap

The trap here is that candidates assume all timeouts in a traceroute mean the destination is unreachable, when in fact timeouts on intermediate hops specifically indicate a problem with a router along the path, not the endpoint.

How to eliminate wrong answers

Option A is wrong because the default gateway is not down; the user can ping it and the first hop of tracert responds, which directly contradicts a down gateway. Option B is wrong because the web server being offline would typically cause a timeout at the final hop or an immediate failure, but here the timeouts occur on intermediate hops, not at the destination. Option D is wrong because a duplicate IP address would cause intermittent connectivity or address conflict errors on the local network, not a clean break where only the first hop responds and subsequent hops time out.

Full explanation →

513

MCQeasy

A customer brings in an iPhone that is running iOS 15 and complains that a newly released app crashes immediately upon launch. The app requires iOS 16 or later. What is the best solution?

A.Reinstall the app from the App Store.

B.Update the iPhone to iOS 16 or later.

C.Restart the iPhone to clear temporary files.

D.Download an older version of the app from a third-party site.

AnswerB

Updating the iPhone's operating system to iOS 16 or later directly addresses the root cause of the app's crashing issue. Applications often rely on specific APIs, frameworks, and system features that are introduced or significantly updated in newer OS versions. By ensuring the device meets or exceeds the app's minimum OS requirement, the necessary software environment is provided, allowing the application to execute correctly and access all its required system resources.

Why this answer

The app crashes because it requires iOS 16 APIs and frameworks that are not present in iOS 15. Updating the iPhone to iOS 16 or later provides the necessary runtime environment, resolving the compatibility issue at the system level.

Exam trap

The 220-1201 exam often tests the misconception that reinstalling or restarting can fix compatibility issues, when the real root cause is a missing OS version requirement that only an update can address.

How to eliminate wrong answers

Option A is wrong because reinstalling the same app from the App Store will still download the latest version, which requires iOS 16, so the crash will persist. Option C is wrong because restarting the iPhone only clears temporary files and caches, but does not add the required iOS 16 APIs or frameworks. Option D is wrong because downloading an older version from a third-party site is a security risk, violates Apple's code signing and sandboxing policies, and the older version may not be compatible with the device's current iOS 15 or may lack necessary features.

Full explanation →

514

MCQmedium

A user reports that their wireless earbuds produce choppy audio when they walk to the other side of their office, but work fine when near the phone. The office has many metal filing cabinets and concrete walls. Which of the following is the most likely cause of the audio degradation?

A.The earbuds' battery is low.

B.The phone's Bluetooth antenna is weak.

C.There is interference from a nearby microwave oven.

D.Physical obstructions are blocking the Bluetooth signal.

AnswerD

Bluetooth signals, operating in the 2.4 GHz band, are line-of-sight and are significantly attenuated, absorbed, or reflected by physical obstructions. Materials like concrete walls, metal structures (e.g., filing cabinets), and even water (including the human body) can weaken the signal. As the distance increases and more obstacles are encountered between the device and the earbuds, the signal strength diminishes, leading to reduced range and choppy audio.

Why this answer

Bluetooth signals (typically in the 2.4 GHz ISM band) are highly susceptible to physical obstructions, especially metal filing cabinets and concrete walls, which can absorb or reflect the signal. When the user moves to the other side of the office, the increased distance and these dense materials cause significant attenuation and multipath interference, resulting in choppy audio. The earbuds work fine near the phone because the signal path is clear and short, confirming that the degradation is due to obstruction rather than a device fault.

Exam trap

CompTIA often tests the misconception that interference from common household devices (like microwaves) is the default cause of Bluetooth issues, but the question's specific mention of 'metal filing cabinets and concrete walls' is a clear clue that physical obstruction is the primary factor.

How to eliminate wrong answers

Option A is wrong because low battery in the earbuds would typically cause intermittent disconnections or power-off, not a distance-dependent choppy audio that correlates with walking to the other side of the office. Option B is wrong because a weak Bluetooth antenna in the phone would cause poor performance even at close range, but the user reports the earbuds work fine near the phone, indicating the phone's antenna is adequate. Option C is wrong because interference from a microwave oven would cause random, location-independent dropouts or static, not a consistent degradation tied to moving behind metal and concrete obstacles.

Full explanation →

515

MCQhard

A technician is troubleshooting a network where users intermittently lose connectivity to a critical database server. The technician notices that the server's IP address is being duplicated on the network. Which protocol is responsible for detecting and reporting this conflict?

A.ARP

B.DHCP

C.ICMP

D.DNS

AnswerA

ARP (Address Resolution Protocol) is the correct answer because it directly operates at Layer 2 to map IP addresses to MAC addresses on a local network segment. When an IP address conflict occurs, multiple devices may respond to ARP requests for the same IP, causing network devices' ARP caches to become unstable and frequently update with conflicting MAC addresses. Many operating systems actively use ARP probes or gratuitous ARP messages upon network interface activation to detect if their assigned IP address is already in use by another device, directly identifying the conflict.

Why this answer

The Address Resolution Protocol (ARP) is responsible for detecting and reporting IP address conflicts. When a device sends an ARP probe or gratuitous ARP, it announces its IP address; if another device responds, a conflict is detected. This mechanism allows the operating system to alert the user or log the error, as seen in Windows with the 'IP address conflict' notification.

Exam trap

Many candidates mistakenly think DHCP handles conflict detection, but DHCP only avoids conflicts during assignment—it does not monitor for conflicts after the lease is granted, which is why ARP is the correct answer.

How to eliminate wrong answers

Option B (DHCP) is wrong because DHCP is used to dynamically assign IP addresses and manage lease information, but it does not actively detect or report conflicts; it relies on ARP probes to verify address availability. Option C (ICMP) is wrong because ICMP handles error reporting and diagnostic functions like ping and traceroute, but it does not detect IP address conflicts; it operates at the network layer without MAC address resolution. Option D (DNS) is wrong because DNS translates domain names to IP addresses and has no role in detecting duplicate IP addresses on a local network.

Full explanation →

516

MCQmedium

A small business wants to add a guest wireless network that allows visitors to access the internet but prevents them from reaching internal company resources. The existing network uses a single wireless router with a default configuration. Which of the following should a technician implement?

A.Change the default SSID and disable SSID broadcast to hide the guest network.

B.Set up MAC filtering to allow only known guest devices on the wireless network.

C.Configure a separate guest SSID and enable client isolation or a guest VLAN on the wireless router.

D.Enable WPA3-Personal on the guest SSID and place it on the same VLAN as the corporate network.

AnswerC

Creating a separate guest SSID with client isolation or a dedicated guest VLAN prevents guests from accessing internal company resources while still providing internet access. This is the standard method for guest network segmentation on a small business router. It meets both security and connectivity requirements without additional hardware.

Why this answer

A separate guest SSID with client isolation or a guest VLAN isolates guest traffic from the internal network, preventing access to company resources while allowing internet access. This is the most effective and standard solution for the scenario. Other options either do not provide isolation or only add superficial security.

Exam trap

The trap here is assuming that encryption or hiding the SSID provides isolation, when in fact only network segmentation (guest VLAN or client isolation) prevents access to internal resources.

Full explanation →

517

MCQmedium

A technician is configuring a company-issued tablet for a sales representative who frequently works from a car. The tablet needs internet access for CRM software and GPS navigation. Which mobile network connectivity option is most appropriate for this scenario?

A.Connect the tablet to a personal hotspot from the sales rep's smartphone.

B.Install a Wi-Fi extender in the car to boost nearby public Wi-Fi signals.

C.Use a tablet with an integrated cellular modem and a company data plan.

D.Rely on Bluetooth tethering to a laptop for internet access.

AnswerC

A tablet equipped with an integrated cellular modem and provisioned with a company data plan offers the most reliable and independent internet access for a mobile sales representative. This configuration provides dedicated, always-on connectivity across a wide geographical area covered by cellular networks, eliminating the need to rely on external devices, public Wi-Fi, or the availability of a Wi-Fi signal. It ensures consistent performance and security under company control, crucial for business-critical applications and data synchronization while on the go.

Why this answer

A tablet with an integrated cellular modem and a company data plan provides dedicated, always-on mobile broadband connectivity independent of external devices or Wi-Fi hotspots. This ensures reliable internet access for CRM and GPS navigation even while the sales representative is driving between locations, without draining a smartphone battery or depending on inconsistent public Wi-Fi.

Exam trap

The 220-1201 exam often tests the misconception that tethering or Wi-Fi extenders are equivalent to dedicated cellular connectivity, but the trap here is that candidates overlook the reliability and independence required for mobile work in a vehicle, where the tablet must function without depending on other devices or fixed infrastructure.

How to eliminate wrong answers

Option A is wrong because a personal hotspot relies on the smartphone's cellular connection and battery, which can be drained quickly during extended use in a car, and introduces a single point of failure if the smartphone loses signal or runs out of power. Option B is wrong because a Wi-Fi extender cannot create a new internet connection; it only repeats existing Wi-Fi signals, and public Wi-Fi is rarely available or reliable inside a moving vehicle. Option D is wrong because Bluetooth tethering to a laptop typically provides slower speeds (Bluetooth 5.0 max ~2 Mbps) and requires the laptop to have its own internet connection, which is not guaranteed in a car scenario.

Full explanation →

518

MCQhard

During a hardware upgrade, you install a new high-end graphics card and connect a 144Hz gaming monitor via DisplayPort. The monitor is set to 144Hz in Windows, but the screen occasionally goes black for a few seconds during gameplay. What is the most likely cause?

A.The graphics card is overheating.

B.The monitor's refresh rate is set too high for the cable.

C.The power supply unit is insufficient.

D.The monitor's firmware is outdated.

AnswerB

High refresh rates, especially when combined with high resolutions, demand substantial bandwidth from the display cable to transmit the video signal without corruption. If the installed DisplayPort or HDMI cable is not certified for the required bandwidth, or is of lower quality, it may struggle to maintain signal integrity at 144Hz, leading to intermittent signal loss and brief black screens. Upgrading to a certified high-speed cable designed for the specific resolution and refresh rate is crucial for stable operation.

Why this answer

When a monitor intermittently blanks at high refresh rates, the most common cause is that the DisplayPort cable (or its version) cannot sustain the required bandwidth for the chosen resolution and refresh rate. Older DP 1.1/1.2 cables or low-quality cables often fail to carry 144Hz at higher resolutions, causing signal dropouts that manifest as brief black screens. Upgrading to a certified DP 1.4 (or higher) cable typically resolves the issue.

Exam trap

The trap here is assuming any DisplayPort cable supports all refresh rates; CompTIA 220-1201 often tests the misconception that refresh rate issues are always GPU or monitor faults, when cable bandwidth is the usual culprit.

How to eliminate wrong answers

Option A is wrong because GPU overheating usually causes artifacts, throttling, or system shutdowns, not intermittent black screens tied specifically to refresh rate. Option C is wrong because an insufficient PSU would cause system instability, reboots, or failure to boot under load, not a display-only dropout. Option D is wrong because outdated monitor firmware rarely causes periodic black screens during gameplay; firmware issues typically manifest as feature bugs or compatibility problems, not bandwidth-related signal loss.

Full explanation →

519

MCQeasy

A customer complains that their smartphone's mobile hotspot stops working after a few minutes. They are using a prepaid data plan. What is the most likely cause?

A.The smartphone's battery saver mode is turning off the hotspot.

B.The connected device is out of Bluetooth range.

C.The carrier's prepaid plan restricts hotspot usage or throttles data.

D.The smartphone's Wi-Fi antenna is overheating.

AnswerC

Many mobile carriers, especially with prepaid or specific tiered data plans, implement strict policies regarding mobile hotspot usage. These restrictions often include a separate, smaller data allowance specifically for tethering, or they may impose severe data throttling once a certain hotspot data threshold is reached. This can cause the connection to become unusable or drop entirely for connected devices after initial use, even if the phone itself still has high-speed cellular data available for on-device applications.

Why this answer

This scenario highlights carrier restrictions on tethering. Many prepaid plans limit hotspot usage or throttle data after a certain amount, causing the hotspot to disconnect or slow down.

Full explanation →

520

MCQmedium

After deploying a new 802.11ac access point, users report that some devices can connect but others cannot, even though they are in the same room. All devices support 5 GHz. What is the most likely cause?

A.The access point is using a non-overlapping channel.

B.The access point has 2.4 GHz radios disabled.

C.The devices have incorrect SSID credentials.

D.The access point is overloaded with clients.

AnswerC

If the SSID credentials were incorrect, all devices would fail to connect. The symptom of partial connectivity rules this out.

Why this answer

The scenario describes a new 802.11ac access point where some devices connect and others cannot, and all devices support 5 GHz. Since 802.11ac operates on 5 GHz, disabling 2.4 GHz radios would not prevent these devices from connecting. Using a non-overlapping channel is a best practice and would not cause selective failures.

An overloaded AP can prevent new clients from associating, but the question gives no indication of a high-density environment or client limit. If only some devices have incorrect SSID credentials, those devices will fail authentication while devices with correct credentials connect successfully, directly explaining the selective connectivity.

Exam trap

The trap here is assuming that because all devices support 5 GHz and are in the same room, the issue must be AP-side (such as band settings or client capacity), overlooking the possibility that only some devices have incorrect credentials.

How to eliminate wrong answers

Option A is wrong because using a non-overlapping channel is a recommended configuration to reduce interference and would not prevent devices from connecting. Option B is wrong because 802.11ac only operates on the 5 GHz band, so disabling 2.4 GHz radios has no effect on 5 GHz-capable devices. Option C is wrong because incorrect SSID credentials would cause all devices to fail authentication, not just some, and the scenario states devices are in the same room with no mention of credential differences.

Full explanation →

521

MCQmedium

A technician is setting up a new Android tablet for a warehouse worker who uses a barcode scanner app that requires constant Wi-Fi. The warehouse has multiple access points with the same SSID. The tablet frequently disconnects and reconnects as the worker moves around. What should the technician configure to improve connectivity?

A.Set the tablet to use a static IP address.

B.Disable the tablet's Bluetooth radio.

C.Configure the tablet to prefer the 2.4 GHz band over 5 GHz.

D.Enable the 'Wi-Fi roaming' or 'aggressive handover' setting in the tablet's advanced Wi-Fi options.

AnswerD

Enabling 'Wi-Fi roaming' or 'aggressive handover' in a tablet's advanced Wi-Fi settings directly influences the device's threshold for initiating a reassociation with a different access point. This setting prompts the client to proactively scan for and connect to a stronger AP sooner, even if the current signal is still marginally usable but weakening. By making the device more aggressive in switching, it minimizes the time spent on a weak signal, thereby preventing complete disconnects as the user moves between different access point coverage areas.

Why this answer

Enabling 'Wi-Fi roaming' or 'aggressive handover' configures the tablet to actively scan for stronger access points and initiate a faster re-association when signal strength degrades. This setting reduces the disconnection/reconnection cycles common in multi-AP environments with the same SSID by triggering a proactive handoff before the current link is lost.

Exam trap

The 220-1201 exam often tests the misconception that static IP addresses or disabling other radios solve roaming issues, when the real solution is adjusting the client's roaming aggressiveness to match the multi-AP environment.

How to eliminate wrong answers

Option A is wrong because a static IP address does not affect the roaming decision or handover behavior; it only prevents IP address changes, which is irrelevant to the frequent disconnects caused by sticky client behavior. Option B is wrong because Bluetooth operates on 2.4 GHz but does not interfere with Wi-Fi roaming logic; disabling it would not improve the tablet's ability to switch between access points. Option C is wrong because 2.4 GHz offers longer range but is more congested and prone to interference; the issue is not frequency preference but the tablet's reluctance to roam to a stronger AP, and forcing 2.4 GHz could actually worsen performance in a dense warehouse.

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522

MCQhard

During a BIOS update on a workstation, the power is interrupted, and now the system fails to POST. The motherboard has a backup BIOS chip. What is the most efficient way to recover the system?

A.Replace the motherboard

B.Use a USB flash drive with the correct BIOS file and press a recovery key combination

C.Remove the CMOS battery for 30 minutes

D.Switch the motherboard's dual BIOS jumper to the backup position

AnswerD

Many modern motherboards incorporate a dual BIOS feature, which includes a primary BIOS chip and a secondary, identical backup chip containing a stable firmware version. Switching the motherboard's dual BIOS jumper physically activates the backup chip, allowing the system to boot successfully even if the primary BIOS is corrupted. Once booted from the functional backup, the system can then be used to reflash and restore the corrupted primary BIOS chip, resolving the issue without hardware replacement.

Why this answer

When a motherboard has a dual BIOS (backup BIOS) feature, the fastest recovery from a corrupted primary BIOS is to switch the hardware jumper (or use the board's BIOS switch) to boot from the backup chip. This bypasses the corrupted firmware entirely and lets the system POST immediately, after which the backup can be used to reflash the primary. It requires no external media or lengthy power-drain procedures.

Exam trap

The trap is assuming that clearing CMOS (removing the battery) will fix a failed BIOS update — candidates conflate clearing configuration settings with repairing corrupted firmware, which are entirely different layers.

How to eliminate wrong answers

Option A is wrong because replacing the motherboard is a costly, time-consuming last resort when a built-in backup BIOS already provides a non-destructive recovery path. Option B is wrong because USB BIOS recovery (e.g., ASUS CrashFree BIOS, Gigabyte Q-Flash) is a valid method but is slower and only works if the board supports it and the user knows the correct key combo; the question specifies a backup BIOS chip, making the jumper the most efficient option. Option C is wrong because removing the CMOS battery only clears BIOS settings (NVRAM) — it does not repair corrupted BIOS firmware, so the system will still fail to POST.

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523

MCQhard

A technician is troubleshooting a desktop that has a 256GB SATA SSD (C:) and a 1TB SATA HDD (D:). The user reports that the system is running very slowly, and the C: drive is nearly full. The technician runs a disk cleanup and removes temporary files, but the C: drive still has only 5GB free. What should the technician do to resolve the performance issue without replacing the SSD?

A.Enable write caching on the SSD in Device Manager.

B.Move the user's Documents, Pictures, and other personal folders to the D: drive.

C.Defragment the C: drive to consolidate free space.

D.Disable the page file on the C: drive.

AnswerB

Moving large personal data folders like Documents and Pictures to a secondary D: drive significantly frees up valuable space on the primary C: drive SSD. This action is crucial because SSDs require a substantial amount of free space to efficiently perform essential background operations such as wear leveling and garbage collection. By providing more available blocks, the SSD's controller can better manage data distribution, prevent premature cell degradation, and restore optimal write performance, which degrades severely when the drive is nearly full.

Why this answer

This question tests understanding of SSD performance degradation due to low free space. SSDs need free space for wear leveling and garbage collection. When an SSD is nearly full, performance drops significantly.

The best solution is to move user data and large files to the D: drive to free up space on the C: drive.

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524

MCQmedium

A technician is setting up a cloud-based application that must handle unpredictable spikes in user traffic. The application should automatically add more virtual servers during peak times and remove them when traffic decreases. Which cloud concept is this?

A.Scalability

B.Elasticity

C.High availability

D.Load balancing

AnswerB

Elasticity is the specific characteristic of cloud computing that enables a system to automatically and dynamically provision or de-provision computing resources, such as virtual machines or containers, in response to real-time changes in workload demand. This automatic scaling up during traffic spikes and scaling down during lulls ensures optimal resource utilization and cost efficiency. It directly addresses the need for automatic capacity adjustment in a cloud-based application.

Why this answer

Elasticity is the cloud concept that automatically scales resources up or down based on real-time demand, such as unpredictable traffic spikes. It matches the requirement to add virtual servers during peak times and remove them when traffic decreases. Scalability refers to the ability to handle growth, but not necessarily automatic, dynamic adjustment.

Exam trap

The trap here is confusing scalability with elasticity; candidates often pick scalability because both involve handling increased load, but elasticity specifically implies automatic, dynamic adjustment based on demand.

How to eliminate wrong answers

Option A is wrong because scalability is the capacity to increase resources to meet demand, but it does not imply automatic, real-time adjustment; it can be manual or planned. Option C is wrong because high availability focuses on ensuring uptime and fault tolerance, not on dynamic scaling based on traffic. Option D is wrong because load balancing distributes traffic across multiple servers but does not itself add or remove servers; it works in conjunction with scaling.

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525

MCQeasy

A technician is building a new workstation for video editing. The motherboard supports LGA 1700 socket CPUs. Which of the following CPUs is compatible with this socket?

A.AMD Ryzen 7 5800X

B.Intel Core i5-13600K

C.Intel Core i7-9700K

D.AMD Threadripper 3970X

AnswerB

The Intel Core i5-13600K is a 13th generation Intel processor, specifically engineered to interface with the LGA 1700 socket. This Land Grid Array (LGA) socket features 1700 pins on the motherboard, which make precise electrical contact with corresponding pads on the CPU. Its inherent compatibility ensures proper physical seating, electrical connection, and communication with the motherboard, making it the correct choice for a system built around an LGA 1700 motherboard.

Why this answer

This question tests knowledge of CPU socket compatibility. LGA 1700 is used by Intel 12th, 13th, and 14th generation processors. Choosing the correct socket ensures the CPU physically fits and operates.

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CompTIA A+ Core 1 220-1201 (220-1201) — Questions 451–525