220-1201 Practice Test 30 — 15 Questions

Question 1

A laptop's built-in webcam is not recognized by any application. You have checked Device Manager and the camera is not listed. The webcam ribbon cable appears intact. Which component should you suspect next?

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

Accepted Answer

The webcam module or motherboard USB controller has failed.. Since the webcam is not listed in Device Manager at all, the issue is at the hardware detection level, not the driver or software level. An intact ribbon cable suggests the webcam module itself or the motherboard's USB controller (which typically handles the internal webcam as a USB device) has failed, preventing enumeration. Option C correctly identifies this hardware failure as the next logical suspect.

Answer

The webcam driver is outdated.

Answer

The laptop's BIOS has the webcam disabled.

Answer

The operating system needs to be reinstalled.

Question 2

A technician is setting up a new server that must always have the same IP address on a network using DHCP. The network administrator wants to avoid manually configuring the server's IP to prevent misconfiguration. Which method should be used to ensure the server receives the same IP from the DHCP server?

Accepted Answer

Configure a DHCP reservation on the router for the server's MAC address.. A DHCP reservation binds the server's MAC address to a specific IP address on the DHCP server. This ensures the server always receives the same IP from the DHCP pool without requiring manual static configuration, which aligns with the administrator's goal of avoiding misconfiguration.

Answer

Set the server to use a static IP address outside the DHCP scope.

Answer

Set the server's IP address to 169.254.x.x.

Answer

Disable the server's network adapter and re-enable it.

Question 3

A user reports that their laptop's battery drains quickly when connected to a USB-C docking station, even when the laptop is plugged into the dock's power delivery port. The dock supports 60W power delivery, but the laptop requires 65W. What is the most likely issue?

Accepted Answer

The dock's power delivery is insufficient for the laptop. The dock supports 60W power delivery, but the laptop requires 65W. When the power provided is less than the laptop's demand, the laptop will draw power from both the dock and its internal battery to meet the shortfall, causing the battery to drain even while connected. This is a classic case of insufficient power delivery from the dock, not a battery failure or cable issue.

Answer

The laptop's battery is failing

Answer

The USB-C cable is not rated for power delivery

Answer

The laptop is running high-performance mode

Question 4

A technician is troubleshooting a network where users on one floor cannot access a server on another floor. Both floors are connected via a single fiber optic link. The technician checks the link and sees the switch port shows 'err-disabled' status. What is the most likely cause of this state?

Accepted Answer

Port security has been violated. The 'err-disabled' state on a switch port is commonly triggered by a port security violation. When a device attempts to connect with a MAC address that exceeds the configured maximum or is not on the allowed list, the switch disables the port to prevent unauthorized access. This matches the scenario where users on one floor cannot reach a server, as the link is physically intact but logically blocked.

Answer

The fiber cable is damaged

Answer

A duplex mismatch exists between the switches

Answer

The VLAN configuration is incorrect

Question 5

A user reports that they cannot access the internet, but they can ping other devices on the local network. The technician checks the IP configuration and sees: IP: 192.168.1.25, Subnet Mask: 255.255.255.0, Default Gateway: 192.168.2.1. What is the issue?

Accepted Answer

The default gateway is on a different subnet.. The default gateway 192.168.2.1 is not on the same subnet as the host IP 192.168.1.25 with subnet mask 255.255.255.0. For a /24 network, the host's subnet is 192.168.1.0/24, while the gateway belongs to 192.168.2.0/24. The host will ARP for the gateway but never receive a reply because the gateway is on a different Layer 2 broadcast domain, making internet access impossible despite local connectivity.

Answer

The subnet mask is incorrect.

Answer

The IP address is a broadcast address.

Answer

The DNS server is misconfigured.

Question 6

A technician is setting up a mobile workstation for a graphic designer who uses a laptop with a USB-C port that supports Thunderbolt 3. The designer needs to connect two 4K monitors, a wired Ethernet connection, and charge the laptop simultaneously. Which accessory should the technician choose?

Accepted Answer

A Thunderbolt 3 docking station. A Thunderbolt 3 docking station is the correct choice because it provides sufficient bandwidth (up to 40 Gbps) to drive two 4K monitors simultaneously, includes a dedicated Ethernet port for wired networking, and delivers power delivery (PD) to charge the laptop—all through a single USB-C connection that is backward-compatible with Thunderbolt 3.

Answer

A USB-C to dual HDMI adapter

Answer

A USB 3.0 hub with HDMI and Ethernet

Answer

A KVM switch

Question 7

A user reports that their wireless earbuds produce choppy audio when they walk to the other side of their office, but work fine when near the phone. The office has many metal filing cabinets and concrete walls. Which of the following is the most likely cause of the audio degradation?

Accepted Answer

Physical obstructions are blocking the Bluetooth signal.. Bluetooth signals (typically in the 2.4 GHz ISM band) are highly susceptible to physical obstructions, especially metal filing cabinets and concrete walls, which can absorb or reflect the signal. When the user moves to the other side of the office, the increased distance and these dense materials cause significant attenuation and multipath interference, resulting in choppy audio. The earbuds work fine near the phone because the signal path is clear and short, confirming that the degradation is due to obstruction rather than a device fault.

Answer

The earbuds' battery is low.

Answer

The phone's Bluetooth antenna is weak.

Answer

There is interference from a nearby microwave oven.

Question 8

A customer wants to use a portable projector with their smartphone for impromptu presentations. The smartphone has a USB-C port that supports DisplayPort Alt Mode. Which accessory will enable this connection?

Accepted Answer

A USB-C to HDMI adapter. The smartphone's USB-C port supports DisplayPort Alt Mode, which allows it to output a video signal over the USB-C connection. A USB-C to HDMI adapter converts this native DisplayPort signal into HDMI, enabling the portable projector to receive the video input. This is the standard accessory for connecting a USB-C device with DisplayPort Alt Mode to an HDMI display.

Answer

A USB-C to USB-A adapter

Answer

A Bluetooth audio receiver

Answer

A wireless HDMI dongle

Question 9

A technician is configuring a company-issued Android phone for a remote employee. The employee needs to access corporate email via the Gmail app and use a VPN for secure connections. After setup, the user cannot send emails from the Gmail app, but can receive them. What should the technician check first?

Accepted Answer

Check the outgoing mail server (SMTP) settings in the Gmail app.. The Gmail app on Android uses SMTP (Simple Mail Transfer Protocol) for sending emails. Since the user can receive emails (IMAP/POP works) but cannot send, the most likely cause is incorrect SMTP server settings—such as the server address, port (e.g., 587 with STARTTLS), or authentication credentials. The technician should verify these outgoing mail server configurations first, as they are independent of VPN connectivity or storage issues.

Answer

Verify that the VPN is connected and routing traffic correctly.

Answer

Ensure the device has enough free storage space.

Answer

Reinstall the Gmail app from the Play Store.

Question 10

A technician is deploying a new network in a warehouse and needs to measure the length of a spool of Cat6a cable before installation to ensure it does not exceed the 100-meter segment limit. Which tool should be used?

Accepted Answer

TDR (Time-Domain Reflectometer). A Time-Domain Reflectometer (TDR) sends a pulse down the cable and measures the time it takes for the reflection to return from the far end or from a fault. By calculating the propagation velocity of the signal, the TDR can accurately determine the cable length, making it the correct tool to verify that a spool of Cat6a cable does not exceed the 100-meter segment limit before installation.

Answer

Multimeter

Answer

Cable tester

Answer

Tone generator

Question 11

A user reports that their iPhone cannot send or receive MMS messages, but SMS works fine. They have enabled cellular data. What is the most likely missing configuration?

Accepted Answer

The MMS APN settings are incorrect or missing.. B is correct because MMS requires a properly configured APN (Access Point Name) to establish the data connection for sending and receiving multimedia content. Since SMS works (which uses the control channel, not data), but MMS fails despite cellular data being enabled, the most likely issue is that the MMS APN settings are incorrect or missing. Without the correct APN, the device cannot route MMS traffic through the carrier's multimedia messaging center.

Answer

The phone's iMessage is disabled.

Answer

The phone is in Airplane Mode.

Answer

The recipient's phone does not support MMS.

Question 12

A technician is setting up a new Android tablet for a point-of-sale system. The tablet must stay on and connected to Wi-Fi at all times, even when the screen is off. Which setting should the technician adjust?

Accepted Answer

Configure 'Keep Wi-Fi on during sleep' to 'Always'.. The 'Keep Wi-Fi on during sleep' setting, when configured to 'Always', ensures the Wi-Fi radio remains active even when the screen is off. This is essential for a point-of-sale (POS) tablet that must maintain a constant network connection for transaction processing, regardless of the device's sleep state.

Answer

Disable the 'Adaptive battery' feature.

Answer

Set the screen timeout to 'Never'.

Answer

Enable 'Developer options' and set 'Stay awake'.

Question 13

A technician is replacing a cracked screen on a tablet. After removing the digitizer and LCD assembly, they notice the home button flex cable is torn. The tablet still has a physical home button. What should the technician do to ensure the repair is complete and the home button functions?

Accepted Answer

Replace the home button flex cable with a new one.. A torn flex cable cannot be reliably repaired by soldering or taping due to the fine pitch and multilayer construction of modern tablet flex cables. Replacing the entire home button flex cable assembly is the only method that restores the electrical continuity and mechanical integrity required for the physical home button to function properly.

Answer

Solder the torn ends of the flex cable together.

Answer

Use electrical tape to hold the torn cable together.

Answer

Ignore the tear and reassemble the tablet.

Question 14

A technician is setting up a new tablet for a sales team member who travels frequently. The user needs to access the internet via cellular data and also connect to a Bluetooth headset. What should the technician configure first?

Accepted Answer

Insert the SIM card and configure the cellular APN settings.. The tablet must first have cellular connectivity established before any other network-dependent features can function. Inserting the SIM card and configuring the Access Point Name (APN) settings is the prerequisite step because the APN defines the gateway between the cellular network and the internet, including required authentication and packet data protocol (PDP) context parameters. Without a correctly configured APN, the tablet cannot obtain an IP address or route data over the cellular carrier's network, making Bluetooth headset pairing or Wi-Fi settings irrelevant for internet access.

Answer

Enable airplane mode to prevent interference.

Answer

Pair the Bluetooth headset first to ensure audio works.

Answer

Disable Wi-Fi to force cellular data usage.

Question 15

During a laptop keyboard replacement, a technician accidentally dislodges a small ribbon cable from the touchpad connector. The touchpad is now unresponsive. The technician has never worked on this model before. What is the best course of action to resolve the issue?

Accepted Answer

Consult the service manual to identify the correct connector and reseat the cable.. The most logical and safe first step when dealing with an unfamiliar laptop model is to consult the service manual. This ensures the technician identifies the exact connector for the touchpad ribbon cable, preventing damage from forcing the cable into the wrong port. Reseating the cable correctly is the standard fix for a dislodged connection.

Answer

Use tweezers to gently push the ribbon cable into any nearby empty connector.

Answer

Reboot the laptop to see if the touchpad driver reloads.

Answer

Replace the entire keyboard assembly since the touchpad cable is likely broken.