220-1101 Practice Test 14 — 15 Questions

Question 1

A technician is installing network cabling for a new office. The office has a server room in the basement, and the technician needs to connect workstations on the 2nd floor, which is approximately 120 meters (394 feet) away. The required bandwidth is 1 Gbps. Which cabling type should the technician use?

Accepted Answer

Multi-mode fiber. The correct answer is C, multi-mode fiber, because the distance requirement of 120 meters exceeds the maximum segment length for twisted-pair copper cabling (Cat5e and Cat6), which is 100 meters for 1 Gbps. Multi-mode fiber supports distances up to 550 meters at 1 Gbps using 1000BASE-SX, making it the only viable option among the choices.

Answer

Cat5e

Answer

Cat6

Answer

Coaxial

Question 2

A technician is replacing the battery in an Android smartphone. Which of the following is the MOST important step to prevent damage to the SIM card during the repair?

Accepted Answer

Remove the SIM card tray. The SIM card is a delicate component that can be easily damaged if the phone is opened without first removing it. By taking out the SIM card tray, you eliminate the risk of bending or scratching the SIM card when prying the battery or handling internal components. This step is critical because the SIM card sits on a flexible tray that can snap or warp under pressure, potentially rendering the card unusable.

Answer

Power off the phone

Answer

Use a plastic spudger to pry the battery

Answer

Disconnect the screen flex cable

Question 3

A technician is troubleshooting a desktop computer that fails to POST. The system powers on, fans spin, but no video is output and no beep codes are heard. The technician has already reseated the RAM, GPU, and all power cables. The motherboard has a built-in speaker. The technician then removes all RAM sticks and powers on the system; this time, the system emits a series of long beeps. Which of the following should the technician do NEXT?

Accepted Answer

Install one RAM stick at a time and test each in slot 1. The system's behavior—no POST, no beeps with RAM installed, but long beeps when RAM is removed—indicates the motherboard's BIOS is successfully detecting the absence of memory and reporting it via the speaker. This confirms the CPU, motherboard, and power delivery are likely functional, and the issue is isolated to the RAM or its configuration. The next logical step is to test each RAM stick individually in slot 1 to identify a faulty module or slot, following standard memory troubleshooting procedures.

Answer

Replace the power supply unit

Answer

Reinstall the CPU and heatsink

Answer

Clear the CMOS by removing the battery

Question 4

A technician is installing additional RAM into a desktop computer. The motherboard supports DDR4-3200 up to 64GB. The technician installs two 16GB DDR4-3200 sticks into the correct slots (A2 and B2) as per the motherboard manual. Upon powering on, the computer powers on with fans spinning but there is no display and no POST beeps. The technician removes the new RAM and reinstalls the original RAM (two 8GB sticks), and the computer boots normally. Which of the following is the MOST likely cause?

Accepted Answer

The RAM was not fully seated into the slots.. The most likely cause is that the new RAM was not fully seated into the slots. The symptoms—fans spinning, no display, no POST beeps—indicate a hardware initialization failure, often due to poor contact between the RAM module and the slot. Since the original RAM works fine in the same slots, the issue is not with the motherboard or BIOS, but with the installation of the new modules. Proper seating requires applying even pressure until the retention clips click into place.

Answer

The new RAM is incompatible with the motherboard.

Answer

The motherboard needs a BIOS update to support the new RAM capacity.

Answer

The RAM was inserted backwards.

Question 5

A technician is setting up a small network for a home office. The ISP modem provides a public IP address via DHCP. The technician connects a wireless router's WAN port to the modem and configures the router to use DHCP on the WAN interface. The router's LAN network is 192.168.1.0/24. A user connects a laptop via Ethernet to one of the router's LAN ports and can access the internet. However, the user's network printer, which has a static IP address, was previously connected directly to the modem and now cannot be reached from the laptop. The printer is powered on and its Ethernet link light is on. Which of the following is the most likely cause?

Accepted Answer

B. The printer's static IP address is on a different subnet from the router's LAN. The printer's static IP address is likely on a different subnet from the router's LAN (192.168.1.0/24). Since the printer was previously connected directly to the modem, it probably had a public or different private IP address (e.g., 192.168.0.x or 10.0.0.x). The laptop cannot reach the printer because the router will not forward traffic destined for an IP outside its LAN subnet without a route, and the printer's static IP is not in the same broadcast domain.

Answer

A. The printer's firewall is blocking ICMP

Answer

C. The printer needs to be connected to the WAN port of the router

Answer

D. The router's DHCP server is conflicting with the printer's static IP

Question 6

A technician is setting up a small office network with 15 computers, a router, and an unmanaged switch. The computers are configured with static IP addresses. After connecting all computers to the switch, the technician notices that some computers can communicate with each other but cannot access the internet. The router's LAN IP is 192.168.1.1 with subnet mask 255.255.255.0. The computers have IP addresses in the range 192.168.1.2-192.168.1.16 with default gateway 192.168.1.1. The technician pings the router from a computer that cannot access the internet, and the ping times out. Which of the following is the MOST likely cause?

Accepted Answer

The Ethernet cable connecting the switch to the router is faulty.. The ping from a computer to the router (192.168.1.1) times out, indicating that Layer 3 connectivity to the router is absent. Since the switch is unmanaged and operates at Layer 2, it does not perform VLAN routing or filtering; the most likely cause is a physical or data-link layer issue on the link between the switch and the router, such as a faulty Ethernet cable. A faulty cable would prevent frames from reaching the router, causing the ping timeout and the inability to access the internet.

Answer

The switch is not forwarding traffic to the router due to a VLAN mismatch.

Answer

The computers are configured with the wrong subnet mask.

Answer

The router's firewall is blocking ICMP traffic.

Question 7

A technician is troubleshooting a desktop computer that powers on. The case fans and power supply fan spin, but the monitor displays 'No Signal' and the keyboard and mouse do not light up. No beep codes are heard. Which component is MOST likely causing the issue?

Accepted Answer

Failed RAM. The absence of beep codes, combined with spinning fans but no POST (Power-On Self-Test) progression, indicates that the CPU is receiving power and the motherboard is powered on, but the system is halting before it can initialize the keyboard, mouse, or video output. RAM is the most common cause of a 'no POST' scenario because the motherboard's firmware cannot complete memory training or integrity checks without functional RAM, causing it to hang silently with no beep codes if the speaker is not connected or the board lacks a built-in speaker.

Answer

Failed CPU

Answer

Failed graphics card

Answer

Faulty power supply

Question 8

A technician is troubleshooting a desktop computer running Windows 10 that has no network connectivity. The computer is connected via an Ethernet cable to a managed switch. The technician observes that the link light on the network interface card (NIC) is off, but the link light on the switch port is solid green. The technician tests the Ethernet cable with a cable tester and it passes. Connecting a different laptop to the same cable and switch port results in a successful connection. The technician boots the problematic computer from a Linux live USB drive and finds that the NIC link light comes on and the computer can access the network normally. After rebooting back into Windows, the NIC link light is off again and there is no connectivity. Which of the following is the MOST likely cause of this issue?

Accepted Answer

The Windows NIC driver is corrupted or incompatible.. The NIC works under Linux but fails under Windows, which isolates the issue to the Windows software environment. A corrupted or incompatible NIC driver can prevent the OS from initializing the hardware, causing the link light to remain off and no connectivity. Since the hardware passes a cable test and works with another OS, the driver is the most likely cause.

Answer

The NIC is physically faulty.

Answer

The switch port is configured with port security.

Answer

The Ethernet cable is not properly seated.

Question 9

A technician is troubleshooting a desktop PC in a small office. The PC can access local network resources (file servers, printers) by IP address but cannot access any external websites by domain name or IP address. The PC uses a static IP configuration: IP 192.168.1.100, subnet mask 255.255.255.0, default gateway 192.168.1.1, DNS server 192.168.1.1. The technician successfully pings 192.168.1.1 and 8.8.8.8 fails. Pinging 8.8.8.8 from another PC on the same network succeeds. Which of the following is the MOST likely cause?

Accepted Answer

The router's network address translation (NAT) is malfunctioning.. The PC can access local resources by IP and ping the default gateway, indicating Layer 2/3 connectivity within the LAN is fine. However, pinging 8.8.8.8 fails while another PC on the same network succeeds, which isolates the issue to this specific PC. Since the PC uses a static IP and can reach the gateway, the most likely cause is that the router's NAT is malfunctioning for this particular host, preventing its traffic from being translated to a public IP for external reachability.

Answer

The PC's subnet mask is incorrect.

Answer

The default gateway on the PC is misconfigured.

Answer

The DNS server setting is incorrect.

Question 10

A technician is troubleshooting a desktop computer that cannot access the internet. The computer is configured with a static IP address of 10.0.0.15, subnet mask 255.255.255.0, and default gateway 10.0.0.1. The technician can ping the default gateway successfully but cannot ping the public IP address 8.8.8.8. Other devices on the same network can access the internet normally. Which of the following is the MOST likely cause?

Accepted Answer

A firewall on the computer is blocking outbound traffic. The computer can ping the default gateway (10.0.0.1) successfully, which confirms that Layer 2 and Layer 3 connectivity to the local network is working, and the static IP configuration is correct. Since other devices on the same network can access the internet normally, the issue is isolated to this specific computer. A local firewall (e.g., Windows Defender Firewall) blocking outbound ICMP or TCP traffic to public IPs like 8.8.8.8 would prevent internet access while still allowing local subnet communication, making option C the most likely cause.

Answer

The DHCP server is not functioning

Answer

The default gateway is not configured correctly on the computer

Answer

The network cable is faulty

Question 11

A technician is troubleshooting a desktop computer that experiences brief network disconnections lasting 5-10 seconds several times an hour. During the disconnections, the network activity and link lights on both the NIC and the switch remain illuminated. The technician has replaced the Ethernet cable, updated the NIC driver, and disabled power saving settings for the NIC. The issue persists. Which of the following should the technician do NEXT?

Accepted Answer

Perform a loopback test on the NIC. The correct next step is to perform a loopback test on the NIC. Since the link lights remain active during disconnections, the physical layer (cable, switch port) appears intact, and the issue persists after replacing the cable, updating the driver, and disabling power saving. A loopback test isolates whether the NIC itself can successfully send and receive data internally, ruling out internal NIC failure or a faulty transceiver without relying on external network traffic.

Answer

Check for an IP address conflict on the network

Answer

Replace the network switch

Answer

Review the system event logs for network-related errors

Question 12

A technician is troubleshooting a desktop PC that fails to boot with the error 'Bootmgr is missing.' The technician boots from a Windows installation media and runs bootrec /fixmbr and bootrec /fixboot, which complete successfully. After restarting, the error persists. The hard drive is detected in BIOS and appears in the boot order. Which of the following should the technician do NEXT?

Accepted Answer

Run bootrec /rebuildbcd. The error 'Bootmgr is missing' indicates that the Boot Configuration Data (BCD) store is corrupted or missing. While bootrec /fixmbr and bootrec /fixboot repair the master boot record and boot sector, they do not rebuild the BCD store. Running bootrec /rebuildbcd scans the system for installed Windows installations and recreates the BCD store, which is necessary to resolve the persistent error.

Answer

Replace the hard drive

Answer

Check the SATA data cable

Answer

Set the system partition as active

Question 13

A technician is adding a new RAID controller to a server. After installing the card into a PCIe slot and connecting the internal cables, the server powers on but does not POST. The fans spin and power LED is on, but there is no display output or beep codes. The technician removes the RAID controller and the server boots normally. The technician reseats the controller in a different PCIe slot, but the same symptom occurs. The controller is listed as compatible with the server model. Which of the following is the MOST likely cause?

Accepted Answer

The RAID controller requires more power than the PCIe slot can provide. The RAID controller is a high-power PCIe device that may exceed the 75W power limit of a standard PCIe slot. When the controller draws more power than the slot can supply, the motherboard may fail to initialize the device during POST, causing a no-POST condition with fans spinning and no beep codes. Removing the controller allows the system to boot normally, confirming the power draw issue.

Answer

The PCIe slot is defective

Answer

The server's BIOS needs to be updated

Answer

The RAID controller's firmware is corrupted

Question 14

A technician is troubleshooting a desktop computer that randomly restarts under heavy load, such as during video rendering. Temperature monitoring shows CPU and GPU temperatures are within normal ranges. The power supply unit (PSU) fan is spinning, but the technician suspects power delivery issues. Which tool should the technician use to directly test the PSU's voltage outputs?

Accepted Answer

Power supply tester. A power supply tester (D) is the correct tool because it is specifically designed to measure the voltage outputs of a PSU on each rail (e.g., +3.3V, +5V, +12V) under load conditions, directly verifying if the PSU is delivering stable power. While a multimeter can also measure voltage, it requires the technician to probe live pins while the system is running, which is less safe and does not simulate load as effectively. The power supply tester provides a dedicated, safe, and accurate way to test PSU output without needing to power on the entire system.

Answer

Multimeter

Answer

Loopback plug

Answer

Cable tester

Question 15

A technician is troubleshooting a desktop computer that will not boot. The computer powers on, the fans spin, but the screen remains black. The technician hears a series of beeps: one long beep followed by two short beeps. This pattern repeats. Which component is MOST likely causing the issue?

Accepted Answer

Video card. The one long beep followed by two short beeps is a standard AMI BIOS beep code indicating a video card error. Since the computer powers on and fans spin, the power supply and basic motherboard functions are working, but the black screen points to a failure in the video subsystem. This makes the video card the most likely culprit.

Answer

CPU

Answer

RAM

Answer

Power supply