220-1201 Practice Test 11 — 15 Questions

Question 1

A user complains that text on their new 27-inch 4K monitor appears very small and hard to read. The display is set to its native resolution. What is the most effective way to make text readable without sacrificing image quality?

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

Accepted Answer

Increase the display scaling percentage in OS settings. At the native 4K resolution (3840x2160), pixels are densely packed, making UI elements physically tiny. Increasing the display scaling percentage (e.g., to 150% or 200%) instructs the OS to render text and icons at a larger logical size while keeping the monitor at its native resolution, preserving full sharpness and detail. This is the standard solution for high-DPI displays.

Answer

Reduce the screen resolution to 1920x1080

Answer

Replace the monitor with a lower-resolution model

Answer

Adjust the monitor's physical sharpness setting

Question 2

A user reports that their monitor displays a 'No Signal' message when they turn on their computer. The monitor is connected via DisplayPort. The technician checks that the monitor is powered on and the cable is secure. What should the technician check next?

Accepted Answer

Try a different DisplayPort cable or port on the GPU.. The 'No Signal' message with a DisplayPort connection typically indicates a loss of link training between the GPU and monitor. Since the cable is secure and the monitor is powered on, the next logical step is to isolate whether the issue is with the cable or the GPU port by trying an alternative DisplayPort cable or a different port on the GPU. This is a standard hardware troubleshooting step before moving to driver or replacement actions.

Answer

Replace the monitor.

Answer

Check the input source setting on the monitor.

Answer

Update the graphics driver.

Question 3

A user wants to wirelessly stream music from their smartphone to a Bluetooth speaker in the same room. Which network type is being used for this connection?

Accepted Answer

Personal Area Network (PAN). C is correct because a Bluetooth connection between a smartphone and a speaker operates within a Personal Area Network (PAN). PANs are defined by IEEE 802.15 and cover a short-range, ad-hoc wireless link (typically up to 10 meters) designed for personal device interconnectivity, which matches the Bluetooth streaming scenario exactly.

Answer

Local Area Network (LAN)

Answer

Wide Area Network (WAN)

Answer

Metropolitan Area Network (MAN)

Question 4

A technician is troubleshooting a satellite internet connection that has high latency and frequent disconnections. The dish is installed on a roof with a clear view of the sky. What is the most likely cause of the high latency?

Accepted Answer

The signal has to travel a long distance to the satellite and back.. Satellite internet inherently suffers from high latency because the signal must travel to a geostationary satellite approximately 35,786 km above the equator and back. This round-trip distance of roughly 70,000 km, even at the speed of light, results in a minimum latency of about 240 ms, which is far higher than terrestrial connections. Frequent disconnections can also occur due to atmospheric conditions, but the high latency is a direct consequence of the physical distance the signal must traverse.

Answer

The satellite dish is not grounded properly.

Answer

The modem is outdated.

Answer

There is interference from nearby cellular towers.

Question 5

A user complains that their external monitor connected via VGA shows a slightly blurry image with faint horizontal lines. The monitor works perfectly with another computer using the same VGA cable. What is the most likely cause?

Accepted Answer

There is a ground loop between the computer and monitor. The faint horizontal lines and blurry image are classic symptoms of a ground loop, where a difference in electrical potential between the computer and monitor causes interference on the analog VGA signal. Since the monitor works perfectly with another computer using the same cable, the cable and monitor are exonerated, isolating the issue to the computer's grounding or power supply.

Answer

The monitor's resolution is set too high for VGA

Answer

The VGA port on the computer has bent pins

Answer

The graphics driver is corrupt

Question 6

A technician is troubleshooting a wireless network where users report intermittent connectivity and slow speeds. A spectrum analyzer shows high noise levels on the 2.4 GHz band from non-Wi-Fi sources. Which of the following is the MOST effective long-term solution?

Accepted Answer

Move all critical devices to the 5 GHz band.. The 5 GHz band has significantly more non-overlapping channels and is far less congested by non-Wi-Fi interference (e.g., microwaves, Bluetooth, cordless phones) than the 2.4 GHz band. Moving critical devices to 5 GHz avoids the interference source entirely, providing a stable long-term solution without compromising throughput or reliability.

Answer

Reduce the 2.4 GHz channel width to 20 MHz.

Answer

Implement DFS channels on the 5 GHz band.

Answer

Increase the transmit power on the 2.4 GHz radio.

Question 7

A technician is troubleshooting why a new employee cannot log into the company's VPN. The VPN uses RADIUS for authentication. Other employees can connect successfully. Which is the most likely cause?

Accepted Answer

The new employee's account is not configured in the RADIUS database.. Since other employees can connect successfully, the VPN server, RADIUS server, and network connectivity between them are functional. The issue is isolated to the new employee, making it most likely that their account has not been added to the RADIUS database. RADIUS authenticates users against a local or directory-based user store; if the account is missing, authentication will fail for that user alone.

Answer

The VPN server's IP address has changed.

Answer

The RADIUS server is not reachable from the VPN server.

Answer

The DNS server is not resolving the VPN server's hostname.

Question 8

A technician is troubleshooting a desktop that will not boot from a brand new M.2 NVMe SSD. The drive is detected in the BIOS/UEFI, but the system skips it and tries to boot from other devices. The technician has already verified that the drive is properly seated and the BIOS is up to date. What should the technician check next?

Accepted Answer

Check if the boot mode is set to UEFI and the drive is partitioned with GPT.. This question tests advanced knowledge of UEFI boot settings. When an NVMe drive is detected but not bootable, the issue is often that the drive is not partitioned with a GUID Partition Table (GPT) or that the system is in legacy BIOS (CSM) mode. NVMe drives require UEFI boot mode and a GPT partition table to boot.

Answer

Check if the SATA controller is set to AHCI mode.

Answer

Check if the M.2 slot is configured to use SATA or PCIe lanes in the BIOS.

Answer

Check if the drive has been initialized with a Master Boot Record (MBR).

Question 9

A user has an iPhone that will not install a new app from the App Store, displaying a message that the app is 'unable to be installed'. The device has plenty of free storage. What should a technician check first?

Accepted Answer

Verify that the Apple ID is not locked or restricted.. When an iPhone has sufficient storage but fails to install an app with an 'unable to be installed' message, the most common cause is an issue with the Apple ID account, such as being locked, restricted, or having payment problems. Apple's App Store installation process requires a valid, unlocked Apple ID to authenticate the download and verify entitlements. Checking the Apple ID status is the first logical step before exploring other potential causes.

Answer

Check if the app is compatible with the iOS version.

Answer

Reset the phone's network settings.

Answer

Perform a factory reset of the device.

Question 10

A technician is setting up a new file server and needs to ensure that users can access shared folders using a friendly name like \fileserver\share instead of an IP address. Which protocol must be configured correctly on the network?

Accepted Answer

DNS. DNS (Domain Name System) resolves the friendly hostname 'fileserver' to the server's IP address, allowing users to use \fileserver\share instead of an IP address. Without DNS, the SMB client cannot translate the name, and the connection fails. This makes DNS the correct protocol for name resolution in this scenario.

Answer

DHCP

Answer

SMB

Answer

HTTP

Question 11

A technician is troubleshooting a tablet that has a dim display that flickers intermittently. The device responds to touch and the OS loads normally. Which component is most likely failing?

Accepted Answer

The backlight LED or inverter is failing.. The backlight LED or inverter is the most likely failing component because the display is dim but still functional (the LCD panel itself works, as the OS loads and touch responds). A failing backlight reduces brightness and can cause flickering due to inconsistent power delivery to the LEDs, while the digitizer and GPU remain operational.

Answer

The digitizer is malfunctioning.

Answer

The LCD panel has dead pixels.

Answer

The motherboard GPU is damaged.

Question 12

A user complains that they cannot access any websites, but they can ping other devices on the local network by IP address. The network uses DHCP and DNS servers. Which protocol is most likely failing?

Accepted Answer

DNS. This scenario isolates a DNS failure: local IP communication works, but name resolution fails. DNS translates domain names to IP addresses, so if it fails, web browsing by name will not work while local IP pings succeed.

Answer

DHCP

Answer

HTTP

Answer

ICMP

Question 13

A user reports that their laptop's external monitor connected via USB-C to HDMI adapter flickers intermittently. The adapter works fine with other devices. What is the most likely cause?

Accepted Answer

The USB-C port on the laptop has a loose connection.. The adapter works fine with other devices, which isolates the problem to the laptop's USB-C port. A loose connection in the port can cause intermittent signal loss, leading to flickering. This is a common hardware issue with USB-C ports that support DisplayPort Alt Mode for video output.

Answer

The HDMI cable is defective.

Answer

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

Answer

The laptop's graphics driver is outdated.

Question 14

A technician is setting up a new file server and wants to ensure that clients can automatically obtain the server's IP address via a friendly name without manual configuration. Which network service should be configured on the server?

Accepted Answer

DNS. DNS (Domain Name System) resolves friendly hostnames (e.g., fileserver.company.local) to IP addresses, allowing clients to automatically discover the server without manual IP entry. DHCP assigns IP addresses dynamically, but does not provide name resolution; DNS is the correct service for mapping names to IPs.

Answer

DHCP

Answer

RADIUS

Answer

NTP

Question 15

A technician is troubleshooting a laptop that emits a series of beeps (one long, two short) on startup and displays nothing on the screen. The laptop was working fine until the user installed a new RAM module. What is the most likely cause?

Accepted Answer

The new RAM module is incompatible with the laptop's chipset. One long and two short beeps is a common BIOS POST code indicating a video or display adapter issue. However, since the problem started after installing RAM, it is likely that the RAM module is incompatible or not seated properly, causing a memory-related POST failure that manifests as a video error code on some systems.

Answer

The laptop's display cable has become disconnected

Answer

The laptop's CMOS battery is dead

Answer

The user accidentally damaged the motherboard when installing the RAM