220-1101 Practice Test 10 — 10 Questions

Question 1

A technician is troubleshooting a desktop PC that was functioning normally before the user cleaned the inside with compressed air. After reassembly, the PC powers on (fans spin, LEDs light) but there is no video output and no POST beeps. The technician has already reseated the RAM, GPU, and all power cables. Which of the following should the technician do NEXT?

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

Accepted Answer

Clear the CMOS by removing the battery or using the jumper. Clearing the CMOS is the correct next step because the compressed air may have dislodged dust or created a static discharge that corrupted the BIOS/UEFI configuration, causing the system to fail POST without beeps. Reseating components already addressed loose connections, so the issue likely lies in the stored firmware settings, which a CMOS reset will restore to defaults.

Answer

Check the power supply voltages with a multimeter

Answer

Replace the motherboard

Answer

Replace the CPU 4+4 pin power cable

Question 2

A technician is troubleshooting a desktop PC that was functioning normally before the user cleaned the inside with compressed air. After reassembly, the PC powers on (fans spin, LEDs light) but there is no video output and no POST beeps. The technician has already reseated the RAM, GPU, and all power cables. Which of the following should the technician do NEXT?

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

Accepted Answer

Install a ferrite choke on the Ethernet cable.. The symptom—network drops coinciding with elevator motor startup—indicates electromagnetic interference (EMI) from the motor's inductive load. Replacing the cable, NIC, and testing the switch port rules out physical layer faults. A ferrite choke suppresses high-frequency noise on the Ethernet cable by acting as a low-pass filter, preventing EMI from corrupting the differential signal pairs (per IEEE 802.3).

Answer

Replace the power supply unit.

Answer

Configure a static IP address on the workstation.

Answer

Disable the NIC's power-saving features.

Question 3

A company develops a custom web application that requires a specific runtime environment and middleware. The company wants to avoid managing the underlying servers, operating system patches, and runtime scaling. They choose a cloud service where they can upload their application code and the provider automatically handles the OS, runtime, and scaling based on demand. Which cloud service model does this describe?

Accepted Answer

Platform as a Service (PaaS). This scenario describes Platform as a Service (PaaS), where the cloud provider manages the underlying infrastructure, operating system, runtime environment, and middleware. The customer only needs to upload their application code, and the provider automatically handles scaling, patching, and runtime dependencies. This contrasts with IaaS, where the customer manages the OS and runtime, and SaaS, where the provider delivers a fully functional application.

Answer

Infrastructure as a Service (IaaS)

Answer

Software as a Service (SaaS)

Answer

Desktop as a Service (DaaS)

Question 4

A technician is troubleshooting a desktop PC that was functioning normally before the user cleaned the inside with compressed air. After reassembly, the PC powers on (fans spin, LEDs light) but there is no video output and no POST beeps. The technician has already reseated the RAM, GPU, and all power cables. Which of the following should the technician do NEXT?

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

Accepted Answer

Apply new thermal paste between the CPU and heatsink.. The critical thermal event indicates the CPU is overheating despite the heatsink being securely attached and fans spinning. Over time, thermal paste can dry out or become less effective, reducing heat transfer between the CPU and heatsink. Applying new thermal paste restores proper thermal conductivity, which is the most likely fix given the symptoms and the technician's initial checks.

Answer

Replace the power supply.

Answer

Reinstall the operating system.

Answer

Run a memory diagnostic.

Question 5

A user's smartphone has a cracked screen that is still partially functional, but the touch input does not work in the cracked area. The user wants to back up all data before taking it for repair. Which method would be MOST reliable to back up the data if the screen is unresponsive?

Accepted Answer

Use a cloud backup service that was previously enabled.. If a cloud backup service (e.g., iCloud, Google Drive, Samsung Cloud) was previously enabled and configured to back up automatically, the user can restore the data after the repair without needing any screen interaction. This method does not require the touchscreen to be functional, as backups occur in the background over Wi-Fi. It is the most reliable approach when the screen is unresponsive and no prior wired connection was established.

Answer

Connect the phone to a computer via USB and use file explorer.

Answer

Use an OTG cable to connect a mouse.

Answer

Use the phone's recovery mode to perform a full backup.

Question 6

A user's Android smartphone charges normally when powered off and connected to a wall charger. However, when the phone is powered on and connected to the same charger, the battery percentage decreases over time despite showing the charging icon, eventually causing the phone to shut down. The user has tried multiple charging cables and adapters, performed a factory reset, and the issue persists. Which of the following is the MOST likely cause?

Accepted Answer

The battery has reached end-of-life and cannot hold a charge. The fact that the phone charges normally when powered off but discharges when powered on indicates that the battery can accept a charge but cannot supply enough current to meet the device's operational demands. This is a classic symptom of a battery that has reached its end-of-life, where its internal resistance has increased significantly, causing the voltage to sag under load. The factory reset and cable/adapter swaps rule out software and accessory issues, isolating the battery as the most likely culprit.

Answer

The charging port is loose or damaged

Answer

The operating system has a bug causing high power drain

Answer

The mainboard's charging IC is malfunctioning

Question 7

A user reports that their desktop computer will not boot after a power surge. When the power button is pressed, the case power LED lights up, fans spin for about two seconds, and then everything stops. There are no beep codes and no display. The technician has tested the power supply with a multimeter and confirmed that all voltages are within specification. The motherboard shows no signs of physical damage or bulging capacitors. Which component should the technician test or replace NEXT?

Accepted Answer

Motherboard. Since the power supply voltages are confirmed good and the motherboard shows no visible damage, the next most likely culprit is the motherboard itself. The symptom of fans spinning briefly and then stopping without beep codes or display indicates a failure in the motherboard's power sequencing or POST logic, often due to a damaged voltage regulator module (VRM) or chipset from the power surge, even without visible bulging capacitors.

Answer

CPU

Answer

RAM

Answer

Graphics card

Question 8

A technician installs a new VoIP phone that receives power via PoE from a managed switch. The phone powers on but cannot register with the call server. A PC connected to the phone's passthrough port obtains an IP address and accesses the internet normally. Which of the following is the most likely cause of the phone's failure?

Accepted Answer

The switch port has a VLAN mismatch for the voice VLAN. The phone powers on via PoE and the PC behind it works, proving Layer 1 and basic Layer 2 connectivity are fine. The phone cannot register with the call server, which typically requires it to be on the correct voice VLAN. A VLAN mismatch for the voice VLAN means the switch port is configured to tag voice traffic with a different VLAN ID than the phone expects, preventing the phone from communicating with the call server.

Answer

The switch port is configured with a voice VLAN that the phone is not using

Answer

The Ethernet cable between the switch and the phone is faulty

Answer

The phone's MAC address is filtered on the network

Question 9

A technician installs a new network interface card (NIC) into a desktop computer. After installation, the computer boots normally and the NIC is detected in Device Manager without errors. When an Ethernet cable is connected, the link light does not light up on the NIC or the switch port. The cable is known to work with another computer. The technician tries a different port on the same switch, but the link light remains off. Which of the following should the technician do NEXT?

Accepted Answer

Reseat the NIC in the PCIe slot. Since the NIC is detected in Device Manager without errors and the cable works on another computer, the issue is likely a physical connection problem. Reseating the NIC ensures proper contact with the PCIe slot, which can resolve intermittent connectivity or poor electrical contact that prevents the link light from activating.

Answer

Update the NIC driver from the manufacturer's website

Answer

Disable and re-enable the NIC in Device Manager

Answer

Check the NIC's configuration for a disabled port

Question 10

A user reports that their Android smartphone charges very slowly and only when the charging cable is held at a specific angle. The technician inspects the charging port and it appears clean with no visible debris. Which of the following is the BEST first step to resolve this issue?

Accepted Answer

Gently remove any compacted lint from the port using a wooden toothpick or similar non-conductive tool.. The symptom of a smartphone charging only when the cable is held at a specific angle, despite a visually clean port, strongly indicates compacted debris deep inside the port that is not visible during a surface inspection. The best first step is to gently remove any compacted lint using a non-conductive tool like a wooden toothpick, as this is a common, low-risk fix that often resolves the issue without replacing hardware.

Answer

Replace the charging port assembly on the smartphone.

Answer

Use a can of compressed air to blow out the charging port.

Answer

Update the smartphone's operating system to the latest version.