220-1201 Practice Test 24 — 15 Questions

Question 1

A technician is installing a new network in a school and must run cables through air handling plenums. What type of cable jacket is required for this installation?

Accepted Answer

Plenum-rated jacket. Plenum-rated jackets are required for cables installed in air handling plenums because they are made of low-smoke, low-flame materials (such as FEP or PFA) that do not emit toxic fumes or support combustion in the event of a fire. This complies with fire safety codes like the National Electrical Code (NEC) Article 725 and ensures that the air circulation system does not spread smoke or flames throughout the building.

Answer

PVC jacket

Answer

Shielded jacket

Answer

Riser-rated jacket

Question 2

A user's laptop frequently disconnects from a 5 GHz Wi-Fi network when they move to a room two walls away from the access point. The 2.4 GHz network remains stable throughout the office. Which of the following best explains this behavior?

Accepted Answer

The 5 GHz signal has weaker penetration through walls.. The 5 GHz band uses higher frequency radio waves that attenuate more rapidly when passing through solid obstacles like walls, resulting in weaker signal penetration compared to the 2.4 GHz band. This physical property causes the laptop to disconnect from the 5 GHz network when moving two walls away, while the 2.4 GHz signal remains stable due to its longer wavelength and better ability to diffract around obstacles.

Answer

The 5 GHz network is overloaded with users.

Answer

The laptop's Wi-Fi adapter is faulty.

Answer

The access point is configured to prioritize 2.4 GHz traffic.

Question 3

A technician is installing a new network drop in a warehouse where the cable must run near high-voltage machinery. The run is 60 meters. Which type of cable should be used to minimize interference?

Accepted Answer

STP Cat6a cable.. STP Cat6a cable includes a conductive shield that protects against electromagnetic interference (EMI) from nearby high-voltage machinery. The 60-meter run is well within Cat6a's 100-meter maximum segment length, making it the best choice for this environment.

Answer

UTP Cat6 cable.

Answer

Coaxial RG-6 cable.

Answer

Fiber optic cable.

Question 4

A technician is troubleshooting a wireless network where users experience intermittent drops during peak hours. The access point is an 802.11n model operating on 2.4 GHz. The technician suspects channel congestion. Which tool should the technician use to identify the least congested channel?

Accepted Answer

Wi-Fi analyzer. A Wi-Fi analyzer is the correct tool because it scans the 2.4 GHz band and displays channel utilization, signal strength, and overlapping channels. This allows the technician to identify which channel has the least interference and congestion, directly addressing the intermittent drops during peak hours.

Answer

Spectrum analyzer

Answer

Cable tester

Answer

Ping command

Question 5

A technician is called to a home where the customer reports that their cable internet works fine, but the TV service has pixelated channels. The technician suspects a signal issue. What is the most appropriate tool to measure the signal strength and quality on the coaxial line?

Accepted Answer

A cable tester (signal level meter). A cable tester (signal level meter) is the correct tool because it measures both signal strength (in dBmV) and signal quality (SNR or MER) on a coaxial line, which directly diagnoses pixelation caused by poor signal levels or noise. The technician needs to verify that the RF signal from the cable provider meets the required thresholds (typically -10 to +10 dBmV for downstream) to ensure clear TV reception.

Answer

A tone generator and probe

Answer

A multimeter

Answer

An optical time-domain reflectometer (OTDR)

Question 6

During a repair, you accidentally dislodged a small ribbon cable connecting the volume button flex to the mainboard of a smartphone. Now the volume buttons don't work. What is the most likely result of this mistake?

Accepted Answer

The volume buttons become unresponsive.. The volume button flex cable directly connects the physical volume buttons to the mainboard. Dislodging this cable interrupts the electrical circuit that carries the button press signal, so the buttons become unresponsive. This is a direct physical disconnection, not a software or power issue.

Answer

The phone won't power on.

Answer

The touchscreen becomes unresponsive.

Answer

The speaker stops producing sound.

Question 7

A technician is setting up a new tablet for a field worker who needs to capture signatures from customers. The tablet has a standard USB-C port. Which accessory is most appropriate for this task?

Accepted Answer

A capacitive stylus with a fine tip.. A capacitive stylus with a fine tip (Option B) is the most appropriate accessory because it allows the field worker to accurately capture signatures on the tablet's touchscreen. Capacitive styluses work by mimicking the electrical properties of a human finger, and a fine tip provides the precision needed for signature capture without relying on a digitizer or active pen protocol.

Answer

A Bluetooth keyboard for typing notes.

Answer

A USB-C to HDMI adapter for external display.

Answer

A screen protector to prevent scratches.

Question 8

A user reports that their laptop's built-in webcam is not working in any application. The device manager shows the camera with a yellow exclamation mark. The technician has already updated the driver to the latest version, but the issue persists. What should the technician do next?

Accepted Answer

Check the laptop's physical privacy shutter or function key (e.g., Fn+F10) that may disable the camera.. A yellow exclamation mark in Device Manager indicates a driver problem, but since updating the driver did not help, the issue may be a hardware conflict or a disabled device. The next step is to check if the webcam is physically disabled via a function key (e.g., Fn+F10) or a privacy shutter. Many laptops have a hardware switch or a keyboard shortcut to disable the camera for privacy.

Answer

Uninstall the webcam driver from Device Manager and restart the laptop to let Windows reinstall it automatically.

Answer

Replace the webcam module.

Answer

Disable and re-enable the webcam in Device Manager.

Question 9

A user complains that their laptop cannot connect to the company's wireless network, but other devices work fine. The network uses WPA2-Enterprise with 802.1X authentication. Which service is most likely misconfigured on the laptop?

Accepted Answer

The 802.1X authentication method is set to PEAP instead of EAP-TLS.. WPA2-Enterprise with 802.1X authentication requires the laptop to use a supplicant configured with the correct EAP method that matches the RADIUS server. If the laptop is set to PEAP (which uses a username/password or certificate) but the network requires EAP-TLS (which mandates client certificates), authentication will fail, preventing the laptop from connecting even though other devices with the correct configuration work fine.

Answer

The DHCP server is out of addresses.

Answer

The DNS server address is incorrect.

Answer

The RADIUS server is offline.

Question 10

During a network security audit, a technician finds that an employee is using a protocol that allows remote control of a computer with full graphical interface but without encryption. Which protocol should be replaced with a more secure alternative?

Accepted Answer

RDP. RDP (Remote Desktop Protocol) provides full graphical interface remote control but, by default in older versions or misconfigurations, transmits data without encryption, exposing keystrokes, screen content, and credentials to eavesdropping. The secure alternative is to use RDP with TLS/SSL encryption (e.g., via Network Level Authentication) or a VPN, or to replace it with an encrypted remote desktop solution like SSH with X11 forwarding or a modern RDP client enforcing encryption.

Answer

SSH

Answer

Telnet

Answer

FTP

Question 11

A technician is configuring a corporate iPhone for a new executive. The user needs to access company email, calendar, and contacts, but the company requires that all data be encrypted and the device be remotely wipeable. Which configuration step is essential?

Accepted Answer

Enable the device's passcode and Touch ID/Face ID.. Enabling the device's passcode and Touch ID/Face ID is essential because it activates hardware-backed encryption on iOS devices. Without a passcode, iOS cannot generate the encryption key required to protect data at rest, and remote wipe capabilities are contingent on the device being able to authenticate and enforce management commands. This step directly satisfies the corporate requirements for data encryption and remote wipeability.

Answer

Install a third-party antivirus app.

Answer

Disable iCloud backup for the device.

Answer

Set up a VPN connection for all traffic.

Question 12

A user's smartphone intermittently disconnects from a known Wi-Fi network when they move to a different room. The network uses a single access point. What is the most likely cause?

Accepted Answer

The smartphone is connecting to the 5 GHz band, which has poor wall penetration.. The 5 GHz band offers higher data rates but has significantly poorer wall penetration and range compared to the 2.4 GHz band. When the user moves to a different room, the signal from the single access point attenuates more rapidly at 5 GHz, causing intermittent disconnections. This is the most likely cause because the problem is location-dependent and occurs with a known network.

Answer

The access point is overloaded with too many clients.

Answer

The smartphone's MAC address is being filtered.

Answer

The smartphone's battery saver mode is turning off Wi-Fi.

Question 13

A technician is deploying a fleet of tablets for field workers who need to print invoices on a Bluetooth printer. The tablets are Android-based and support Bluetooth 5.0. The printer is an older model supporting Bluetooth 2.1. Which of the following is true about the compatibility between these devices?

Accepted Answer

The tablet and printer will connect but only at Bluetooth 2.1 capabilities.. Bluetooth is backward compatible, meaning a Bluetooth 5.0 device can connect to a Bluetooth 2.1 device. When paired, the connection negotiates the highest common version, which is Bluetooth 2.1. Therefore, the tablet and printer will connect but only at Bluetooth 2.1 capabilities, including its speed, range, and power consumption profile.

Answer

The tablet will not be able to pair with the printer due to version mismatch.

Answer

The connection will operate at Bluetooth 5.0 speeds and range.

Answer

The printer must be upgraded to Bluetooth 4.0 to work with the tablet.

Question 14

A technician is setting up a network printer that supports both standard and secure printing. Which port should be configured for secure IPP printing?

Accepted Answer

Port 631. Secure IPP (Internet Printing Protocol) uses HTTPS to encrypt print jobs and communications. Port 631 is the standard port for IPP, and when secured with TLS/SSL, it still uses port 631 but over HTTPS. This is defined in RFC 3510, which specifies how IPP operates over TLS, making port 631 the correct choice for secure IPP printing.

Answer

Port 9100

Answer

Port 515

Answer

Port 443

Question 15

A user reports that their email client cannot send messages but can receive them. The technician verifies that the email server is reachable and that the user's credentials are correct. Which protocol is most likely misconfigured in the email client?

Accepted Answer

SMTP. SMTP (Simple Mail Transfer Protocol) is used for sending outgoing email messages from a client to a server or between mail servers. Since the user can receive emails but not send them, and the server is reachable with correct credentials, the most likely misconfiguration is in the SMTP settings (e.g., wrong port, missing authentication, or incorrect server address).

Answer

POP3

Answer

IMAP

Answer

HTTP