CompTIA A+ Core 1 (220-1001) — Question 234

The IT department recently updated client computers for the graphics department. A user reports the new computer has not worked since it was set up; it makes unusual sounds when pressing the power button. A technician verifies the power cable works and the computer is connected properly to both data and power. The monitor powers on but only displays the message: No source.
Which of the following BEST explains the cause of this issue?

Answer options

• A. There is insufficient power to the computer
• B. There is a blank screen on system boot
• C. The computer is overheating
• D. The error beep codes on POST

Correct answer: A

Explanation

The correct answer is A because insufficient power could prevent the computer from booting properly, leading to the unusual sounds and lack of display. Option B is incorrect as the monitor is showing a message rather than being blank. Option C is not applicable here since overheating would not cause the system to not power on at all, and option D is irrelevant because the problem described does not involve POST error beep codes.