CompTIA A+ (220-901) — Question 12

A brownout has occurred within a building. A technician is repairing a workstation which has a power light, but is not displaying anything on the screen and is not making any sounds during boot up. Which of the following should be used to further troubleshoot the workstation?

Answer options

• A. Loop back plug
• B. POST card
• C. Power supply tester
• D. Multimeter

Correct answer: B

Explanation

The POST card is the correct tool to use for troubleshooting because it provides diagnostic codes during the Power-On Self-Test, which can help identify hardware issues. The loop back plug is used for network testing, the power supply tester checks voltage outputs but doesn't diagnose boot issues, and the multimeter measures electrical parameters but won't provide specific POST error codes.