CompTIA A+ Question J-26

After installing a bar code reader, which of the following is commonly done to configure the reader?

A. Scan in program codes
B. Enable the code reader in the BIOS
C. Use Device Manager to enable I/R ports
D. Adjust jumper switches

Correct Answer: A

Explanation:
To enable the bar code reader to function optimally, you need to scan in program codes so that it can identify the objects later on.

CompTIA A+ Question J-12

A customer reports that their 4-year-old PC takes a long time to boot. The technician investigates and finds the BIOS is rediscovering the hardware environment at every boot. Which of the following will MOST likely fix this problem?

A. Change out the CMOS battery on the motherboard.
B. At the OS level, launch “Device Manager” and re-scan the hardware.
C. Hit “F9” while the computer is booting, but before the OS starts to load.
D. Reset the BIOS using the CMOS reset jumper.

Correct Answer: A

Explanation:
When CMOS battery loses its juice, the BIOS will act strangely everytime you boot the PC. Change the CMOS battery regularly to keep the BIOS on the motherboard performing optimally.

CompTIA A+ Question I-59

Two new PCs will have a DVD-RW drive for support use. The PCs will be used for Point of Sales transactions and everything will be password protected or disabled. Which of the following is the BEST way to disable the DVD-RW drives?

A. The Registry
B. Device Manager
C. Disk Management
D. The BIOS

Correct Answer: D

Explanation:
BIOS settings directly affect hardware. You can disable DVD-RW drives from the BIOS and it is perhaps the best way to keep the drives disabled. In BIOS menu, there is an option to disable the DVD drives.

CompTIA A+ Question G-70

A user reports that all printouts to a locally attached printer show only garbled characters. Which of the following tools should a technician use to troubleshoot the issue?

A. Programs and Features
B. Performance Monitor
C. System Configuration
D. Device Manager

Correct Answer: D

CompTIA A+ Question E-52

A laptop’s wireless card shows up in the Device Manager, but the signal strength is always one bar. This is caused by which of the following?

A. The signal is disabled in the wireless utility
B. Disconnected or broken antenna
C. Disconnected or broken inverter
D. The wireless switch is turned off

Correct Answer: B