220-1101 Practice Test 16 — 15 Questions

Question 1

A user in a densely populated apartment building complains of frequent Wi-Fi disconnects and slow speeds on the 2.4 GHz band. A spectrum analysis shows many overlapping networks on channels 1, 6, and 11. The router supports both 2.4 GHz and 5 GHz. Which of the following is the BEST solution to improve the user's wireless experience?

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

Accepted Answer

A. Change the client device to use the 5 GHz band. The 2.4 GHz band is congested with overlapping networks on channels 1, 6, and 11, causing co-channel interference and contention. Moving the client device to the 5 GHz band provides access to many more non-overlapping channels (e.g., 36, 40, 44, 48) and typically less interference, resulting in fewer disconnects and higher throughput.

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B. Change the wireless security from WPA2 to WPA3

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C. Increase the router's transmit power to maximum

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D. Change the network SSID to a unique name

Question 2

A company wants to move its email system to the cloud. The cloud vendor provides the email service, including server hardware, operating system, and software. The company only needs to manage user accounts and mailboxes. Which cloud service model is the vendor providing?

Accepted Answer

Software as a Service (SaaS). The vendor provides the entire email service, including server hardware, operating system, and software, while the company only manages user accounts and mailboxes. This matches the Software as a Service (SaaS) model, where the provider delivers a complete application over the internet, and the customer has no control over the underlying infrastructure or platform.

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Infrastructure as a Service (IaaS)

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Platform as a Service (PaaS)

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Desktop as a Service (DaaS)

Question 3

A laser printer produces pages where the toner smudges easily when rubbed. The technician has already replaced the toner cartridge and the imaging drum with new OEM components. The fuser is heating to the correct temperature during operation. Which of the following printer components is MOST likely causing this issue?

Accepted Answer

Fuser roller. The fuser roller is responsible for melting toner into the paper fibers using heat and pressure. If the toner smudges easily despite the fuser heating to the correct temperature, the fuser roller's pressure mechanism or its release coating is likely worn or damaged, preventing proper fusing. Replacing the toner cartridge and imaging drum would not resolve a defective fuser roller.

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Transfer roller

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Laser scanner

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Paper pickup rollers

Question 4

A network technician is setting up a small office with 15 workstations. The ISP provides a single public IPv4 address. The technician configures the router to assign private IP addresses (192.168.1.x) to the workstations via DHCP. Which technology allows all 15 workstations to share the single public IP address to access the internet?

Accepted Answer

NAT (Network Address Translation). NAT (Network Address Translation) allows multiple devices on a private network (like 192.168.1.x) to share a single public IPv4 address by translating the private source IP and port to the public IP and a unique port number when traffic exits the router. This enables all 15 workstations to access the internet simultaneously using the one public address provided by the ISP.

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DNS (Domain Name System)

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DHCP (Dynamic Host Configuration Protocol)

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ARP (Address Resolution Protocol)

Question 5

A user reports that their desktop computer shuts down unexpectedly when running resource-intensive applications like video editing. The technician has cleaned the dust from the heatsink and fans, verified that all fans are spinning, and monitored temperatures. The BIOS reports CPU temperature as 35°C idle and 70°C under load, which are within normal specifications. The system has a dedicated graphics card that requires a 6-pin PCIe power connector, and the power supply is a 450W unit that came with the computer case. Which of the following is the MOST likely cause?

Accepted Answer

The power supply is inadequate for the system's peak power draw. The system shuts down under load despite normal CPU temperatures and clean cooling. A 450W power supply that came with a case is typically a low-quality unit with limited capacity. The dedicated graphics card, especially during video editing, can draw significant power, and the total system peak draw likely exceeds the PSU's capacity, causing it to trip overcurrent protection or shut down.

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The CPU thermal paste has degraded and needs to be reapplied

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The motherboard has a faulty capacitor

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The RAM is incompatible with the motherboard

Question 6

A user reports that their desktop computer shuts down unexpectedly without warning, typically when playing graphics-intensive games or running video rendering software. The technician has verified that the CPU cooler is properly seated with fresh thermal paste and that all fans spin freely. The event logs show a kernel-power error 41. Which of the following should the technician do NEXT?

Accepted Answer

Test the power supply under load or replace it with a known-good unit. Kernel-power error 41 indicates an unexpected loss of power. Under heavy GPU load, a failing or underrated power supply can drop voltage or current, causing the system to shut down instantly. Since the CPU cooling is verified, the power supply is the most likely culprit.

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Replace the RAM modules with known-good ones

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Run a hard drive diagnostic test

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Update the graphics card driver to the latest version

Question 7

A user's iPhone is not receiving any sounds from calls or notifications. The volume is turned up, and the silent switch is not enabled. The technician checks the Settings > Sounds & Haptics and sees that all alert volumes are at maximum. The user also reports that calls go directly to voicemail sometimes. Which of the following is the MOST likely cause?

Accepted Answer

Do Not Disturb mode is enabled.. Do Not Disturb (DND) mode silences all incoming calls and notifications while allowing the device to continue operating normally. Even with alert volumes at maximum and the silent switch disabled, DND will suppress sounds and can send calls directly to voicemail, matching the user's symptoms exactly.

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The speaker hardware is faulty.

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The phone's audio codec is corrupted.

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The ringer switch is set to silent.

Question 8

A desktop powers on but repeatedly shuts down under load. The CPU temperature rises quickly even after dust is removed from the case. What should the technician inspect next?

Accepted Answer

CPU heatsink seating and thermal paste application. The CPU temperature rising quickly under load, even after dust removal, indicates that the heatsink is not making proper contact with the CPU or the thermal interface material has degraded. Inspecting the CPU heatsink seating and thermal paste application is the correct next step because poor thermal transfer causes the CPU to reach its thermal throttle or shutdown threshold, triggering a protective shutdown. This is a classic hardware troubleshooting step for overheating-related intermittent shutdowns.

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The keyboard layout

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The Windows user profile

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The monitor cable type

Question 9

A company needs to deploy a cloud environment where the IT team can create virtual machines, configure virtual networks and firewalls, and install custom operating systems, all without managing any physical servers or networking hardware. Which cloud service model BEST meets these requirements?

Accepted Answer

Infrastructure as a Service (IaaS). Infrastructure as a Service (IaaS) provides on-demand access to virtualized computing resources such as virtual machines, virtual networks, and firewalls, while abstracting the underlying physical hardware. The IT team retains full control over the operating system and network configuration without managing physical servers or networking hardware, which directly matches the requirement.

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Platform as a Service (PaaS)

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Software as a Service (SaaS)

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Desktop as a Service (DaaS)

Question 10

A user has link lights on a network port but receives very slow file transfers. The switch reports many CRC errors on the port. What is the most likely cause?

Accepted Answer

Faulty or damaged Ethernet cable. CRC errors indicate that frames are being corrupted during transmission, which is a classic symptom of a faulty or damaged Ethernet cable. A damaged cable can cause signal degradation, leading to bit errors that the switch detects as CRC mismatches, resulting in retransmissions and slow file transfers.

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Unsupported paper size

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Expired user password

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Incorrect default gateway only

Question 11

Drag and drop the steps for troubleshooting a no-display issue on a desktop computer into the correct order.

Accepted Answer

Ensure power cable connected and PSU switch on, then check video cable connections, then test with a known-good monitor, then reseat RAM and GPU.. Start with simple checks (power, cables), then isolate the issue with a known-good monitor, then internal components.

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Test with a known-good monitor first, then check power, then check video cable connections, then reseat internal components.

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Check power, then check cables, then reseat RAM and GPU, then test with a known-good monitor.

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Check video cable connections first, then check power, then test with a known-good monitor, then reseat internal components.

Question 12

Drag and drop the steps for recovering data from a failed hard drive using a bootable USB into the correct order.

Accepted Answer

Prepare bootable media, then connect drives, then boot from USB, then select source and destination drives, then recover data.. Prepare bootable media, connect drives, boot from USB, select source/destination, then recover.

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Connect drives first, then prepare bootable media, then boot from USB, then select source and destination drives, then recover data.

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Boot from USB first, then connect drives, then prepare bootable media, then select source and destination drives, then recover data.

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Prepare bootable media, then boot from USB, then connect drives, then select source and destination drives, then recover data.

Question 13

A user reports that they can access internal network resources and the internet by IP address, but cannot browse websites using domain names. Other users on the same network can browse the internet normally. Which of the following should the technician do FIRST?

Accepted Answer

Flush the DNS cache on the user's computer. The user can access resources by IP address but not by domain name, which indicates a DNS resolution failure. Since other users on the same network can browse normally, the issue is isolated to this specific workstation. Flushing the DNS cache (ipconfig /flushdns) clears any corrupted or stale DNS entries that may be preventing successful name resolution, making it the quickest and most logical first step.

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Check the DHCP server configuration

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Restart the DNS service on the domain controller

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Replace the network cable

Question 14

Match each memory type to its typical use.

Accepted Answer

RAM: Temporary storage for active programs and data. RAM is volatile and holds active data; ROM is non-volatile for boot code; Cache is fast SRAM for frequent data; Virtual Memory is disk-based RAM extension; Flash is non-volatile for persistent storage. Common confusions include mixing cache with virtual memory and flash volatility.

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Virtual Memory: High-speed memory between CPU and RAM

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Flash Memory: Volatile memory used for temporary storage

Question 15

Match each printer type to its technology.

Accepted Answer

Laser: Uses toner and fuser to bond powder to paper. Laser printers use toner and fuser; inkjet printers spray liquid ink; dot matrix printers use pins and ribbon; thermal printers use heat. Common confusions include mixing laser and thermal transfer or swapping laser and inkjet technologies.

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Laser: Uses heat to melt wax onto paper

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Inkjet: Uses toner and fuser