If you hear a whining noise when you are testing the startup process, which of the following is likely to be the issue? Choose all that apply

A.
Power supply failure.

B.
Monitor issue

C.
Disk drive failure.

D.
Video cards issue

Explanation:
You possibly have power supply or disk drive failure when you hear a whining noise.
The whining noise is usually made when the bearings of these components start to wear.
Incorrect Answers:
B, D: A monitor issue or a faulty video card is usually the problem when you hear a squealing noise or a high-pitched whine.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 490-493.