220-1201 Practice Test 19 — 15 Questions

Question 1

A company is expanding its office to a new building 5 kilometers away and needs to connect the two LANs so employees can share files and access the same servers as if they were in one location. They want a dedicated, high-speed connection without using the public internet. Which network type should be implemented?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Metropolitan Area Network (MAN). A Metropolitan Area Network (MAN) is designed to interconnect multiple LANs across a city or metropolitan region, typically up to 50 km, using dedicated fiber optic links such as Metro Ethernet or SONET/SDH. This provides the high-speed, private connection required without traversing the public internet, making it ideal for connecting two offices 5 km apart.

Answer

Local Area Network (LAN)

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Wide Area Network (WAN)

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Personal Area Network (PAN)

Question 2

A user reports that their laser printer is producing pages with vertical black streaks. The streaks appear in the same location on every page, even after cleaning the glass and performing a calibration. Which component is most likely causing this issue?

Accepted Answer

Toner cartridge drum. Vertical black streaks on laser printer output that repeat in the same location typically indicate a damaged drum or a scratched organic photoconductor (OPC) drum. The drum is responsible for transferring toner to the paper, and any defect on its surface will reproduce the streak on every page.

Answer

Fuser assembly

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Pickup rollers

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Transfer roller

Question 3

A technician is setting up a new RAID 0 array with two 500 GB SSDs for a gaming PC. After installation, the system shows only 500 GB of usable space. What is the most likely cause?

Accepted Answer

The RAID controller is set to RAID 1 instead of RAID 0.. RAID 0 stripes data across both drives, providing combined capacity (1 TB). If only 500 GB is shown, the array may be configured as RAID 1 (mirroring) or not properly set up. The drives themselves are unlikely to be faulty.

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One of the SSDs is not detected by the system.

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The SSDs are different brands and incompatible.

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The operating system does not support RAID 0.

Question 4

A small business wants to move its on-premises file server to the cloud to reduce hardware maintenance costs. They need full control over the operating system and applications running on the server. Which cloud service model should they choose?

Accepted Answer

Infrastructure as a Service (IaaS). This scenario requires the customer to manage the OS and applications, which is characteristic of IaaS. IaaS provides virtual machines where the user controls the OS and installed software, while the provider manages the physical hardware.

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Software as a Service (SaaS)

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Platform as a Service (PaaS)

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Desktop as a Service (DaaS)

Question 5

A technician is troubleshooting a PC that shuts down randomly after a few minutes of use. The technician measures the +12V rail with a multimeter and gets 11.2V. The +5V rail reads 4.9V, and the +3.3V rail reads 3.2V. What is the most likely diagnosis?

Accepted Answer

The power supply is failing and needs replacement.. The +12V rail is significantly below the ATX specification of ±5% (11.4V minimum), indicating a failing power supply. The other rails are within tolerance but the +12V is critical for CPU and GPU power. A failing PSU can cause random shutdowns as voltage drops under load. Replacement is necessary.

Answer

The motherboard voltage regulator is failing.

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The system is drawing too much current, causing voltage drop.

Answer

The AC input voltage is too low.

Question 6

A small office has intermittent network dropouts. A technician suspects electromagnetic interference (EMI) from nearby fluorescent lights affecting the unshielded twisted-pair (UTP) cables. Which tool can best confirm the presence of EMI on the cable?

Accepted Answer

Cable certifier. A cable certifier is the correct tool because it can measure crosstalk, return loss, and other electrical characteristics that reveal the presence of EMI on UTP cables. Unlike simple continuity testers, a certifier performs frequency-domain analysis (e.g., up to 500 MHz for Cat6a) to detect noise and interference that cause intermittent dropouts.

Answer

Tone generator

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Ping

Answer

Wi-Fi analyzer

Question 7

A user complains that their computer, which uses a RAID 1 mirror with two identical HDDs, is running very slowly. The OS is installed on the array. The technician checks and finds that one drive has a high number of bad sectors. What should be done to restore performance and data safety?

Accepted Answer

Replace the failing drive with a new one and rebuild the array.. In RAID 1, a failing drive causes the controller to spend time retrying reads, slowing performance. The correct fix is to replace the failing drive and let the array rebuild, restoring both performance and redundancy.

Answer

Remove the failing drive and continue with the good drive only.

Answer

Defragment both drives.

Answer

Reformat the array and reinstall the OS.

Question 8

A technician is setting up a new 32-inch 4K monitor for a graphic designer. After connecting it via HDMI, the display shows a 'Signal Out of Range' error. The PC has an integrated Intel GPU. What is the most likely cause?

Accepted Answer

The monitor's native resolution is set too high for the GPU's capabilities.. 'Signal Out of Range' means the monitor cannot display the resolution or refresh rate being sent by the GPU. Many integrated Intel GPUs have a maximum resolution of 4096x2160 at 30Hz over HDMI, but if the PC is set to 60Hz, the monitor may reject it. Booting into Safe Mode or using a lower resolution to adjust settings is the standard fix.

Answer

The HDMI cable is defective.

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The monitor's firmware is outdated.

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The PC's BIOS has disabled the HDMI port.

Question 9

A technician is troubleshooting a display that shows vertical lines across the entire screen. The lines persist when a different video cable is used, and the monitor works fine when connected to another computer. What is the most likely cause?

Accepted Answer

The graphics card driver is corrupted.. Vertical lines that persist with different cables but disappear on another computer indicate a problem with the graphics card or its driver on the original computer. The monitor is proven good, so the issue is with the video source.

Answer

The monitor's panel is defective.

Answer

The video cable is damaged.

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The monitor's refresh rate is set incorrectly.

Question 10

A user complains that their desktop PC loses network connectivity intermittently, especially when the printer on the same desk starts printing. What is the most likely cause?

Accepted Answer

The network cable is run too close to power cables.. This question focuses on physical layer interference. Intermittent connectivity linked to a device starting suggests electromagnetic interference (EMI) from the printer's motor or power supply. Network cables near strong EMI sources can experience packet loss or disconnects.

Answer

The printer is using too much bandwidth.

Answer

The desktop has a duplicate IP address.

Answer

The switch port is administratively down.

Question 11

During a network upgrade, a technician installs a new 802.11ax (Wi-Fi 6) access point in a conference room. Users now report intermittent disconnections on their older laptops. What is the most likely cause?

Accepted Answer

The channel width is set too wide for older clients.. Wi-Fi 6 access points can operate in mixed mode, but older clients may struggle with channel width or band-steering settings. The most common issue is that the AP is using a channel width (e.g., 160 MHz) that older devices do not support, causing instability.

Answer

The access point is overheating.

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The DNS server is misconfigured.

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The power over Ethernet (PoE) injector is faulty.

Question 12

A small office has an inkjet printer that intermittently prints blank pages. The printer has been recently refilled with ink, and the printhead alignment test prints correctly. What is the most likely cause of the blank pages?

Accepted Answer

Clogged printhead nozzles. Inkjet printers that print blank pages often have clogged printhead nozzles, especially after refilling. Even if the alignment test prints fine, the nozzles may be partially blocked, causing some pages to print blank. Running a printhead cleaning cycle usually resolves this.

Answer

Low ink levels in the cartridge

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Faulty fuser assembly

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Incorrect paper type setting

Question 13

A technician is setting up a new web server that must be accessible from the internet using HTTPS. The server is behind a firewall that performs port forwarding. After configuration, external users cannot reach the server, but internal users can. Which protocol and port combination must be forwarded to the server?

Accepted Answer

TCP 443. HTTPS uses TCP port 443 by default. Since the server must be accessible from the internet via HTTPS, the firewall must forward TCP port 443 to the server's internal IP address. Internal users can reach the server because they are on the same local network and bypass the firewall's port forwarding rule, but external traffic on port 443 is blocked unless the rule is correctly configured.

Answer

TCP 80

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UDP 443

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TCP 3389

Question 14

A technician is setting up a conference room and needs to connect a laptop to a projector that only has a VGA input. The laptop has an HDMI output. Which adapter should the technician use?

Accepted Answer

HDMI to VGA adapter. HDMI to VGA adapters are common for connecting modern laptops to older projectors. VGA is an analog signal, so the adapter must be active to convert digital HDMI to analog VGA. This question tests knowledge of legacy connector compatibility.

Answer

HDMI to DVI adapter

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USB-C to VGA adapter

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DisplayPort to VGA adapter

Question 15

A small office has a single switch connecting all workstations. Users report that they can see each other on the network but cannot access the internet. The router's link light is off. What should the technician check first?

Accepted Answer

Check the Ethernet cable between the switch and router.. The link light being off indicates a physical layer problem between the switch and router. The most common cause is a faulty or loose cable, so checking the cable connection is the logical first step in network troubleshooting.

Answer

Replace the switch.

Answer

Reboot all workstations.

Answer

Update the router's firmware.