A desktop PC was recently moved to a new area and needs internet access. RJ45 connections are not available, but access can be provided through 802.11n connections. Which of the following will need to be installed?

• Wireless NIC

• NFS system

• SSHD

• USB card

Answer explanation

To enable internet access through 802.11n connections, a Wireless NIC (Network Interface Card) needs to be installed on the desktop PC.

A user is installing a new display on a desktop computer that only has a single DVI port for video input and a single HDMI port for video output. Which of the following does the technician need to complete the setup?

• Digital-to-analog converter

• A/V switcher

• DisplayPort to HDMI adapter

• DVI to HDMI cable

Answer explanation

The technician needs a DVI to HDMI cable to connect the new display to the desktop computer with only a single DVI port for video input and a single HDMI port for video output.

A technician is troubleshooting a classroom projector that shuts down after fifteen minutes of use. Which of the following should the technician do to resolve the issue?

• Replace the video input cable

• Change the bulb

• Clean the air filter

• Swap the power cord

Answer explanation

To resolve the issue of the projector shutting down after fifteen minutes, the technician should clean the air filter to ensure proper ventilation and prevent overheating.

A technician is working on a desktop PC and wants to verify its NIC is functional. Which of the following should the technician use?

• Cable tester

• Loopback plug

• Tone probe

• Network tap

Answer explanation

To verify the NIC is functional, the technician should use a loopback plug to test the network interface by sending signals to itself for verification.

Which of the following should the technician use to check if the laptop's wireless NIC is functional when it is unable to browse the internet when connected to the company's wireless network, but works with an Ethernet cable?

• Hotspot

• Near-field communication

• Ethernet tap

• Spectrum analyzer

Answer explanation

The technician should use an Ethernet tap to check the laptop's wireless NIC functionality as it works with Ethernet cable but not wireless, indicating a potential issue with the wireless connection.

Which of the following is the hardware component that has MOST likely failed if a computer will not turn on, despite the power cord and outlet being verified as working properly?

• PSU

• CPU

• RAM

• GPU

Answer explanation

If a computer will not turn on despite the power cord and outlet working, the most likely failed hardware component is the PSU (Power Supply Unit) as it is responsible for providing power to the system.

Which of the following networking devices will MOST likely need to be installed between the ISP and the LAN in a SOHO environment?

• Switch

• Firewall

• Cable modem

• Router

• Access point

Answer explanation

In a SOHO environment, a router is typically needed between the ISP and the LAN to manage the connection, provide security, and allow multiple devices to connect.

Which of the following will the technician need to verify is enabled to complete the configuration of a desktop computer where the hard drive must be encrypted?

• ATX

• NIC

• TPM

• ARM

Answer explanation

The technician will need to verify that TPM (Trusted Platform Module) is enabled to complete the configuration of a desktop computer where the hard drive must be encrypted.

A storage server with three drives was reporting errors indicating the array was in degraded mode, but the stored files were still accessible. Which of the following RAID configurations did the technician MOST likely find?

• RAID 0

• RAID 1

• RAID 5

• RAID 10

Answer explanation

The technician most likely found RAID 5 configuration due to the array being in degraded mode but files still accessible.

A technician is building a new computer for a customer. The computer must use an ITX-sized motherboard and have a RAID 5 array with all drives using the same interface. Which of the following drive types will the technician MOST likely utilize?

• SCSI

• PCIe

• NVMe

• SATA

Answer explanation

The technician will most likely utilize SATA drives as they are commonly used for RAID arrays and are available in ITX-sized motherboards.