Which of the following statements best describes what a cable tester is? Choose all that apply.

A.
An expansion card that plugs into one of the expansion slots of the server board.

B.
Cable testers are used to troubleshoot data communication cabling.

C.
Cable testers are used to test for faulty cable connectors.

D.
Cable testers are used to troubleshoot the server system as it boots.

Explanation:
Cable testers are hardware diagnostic tools that are used to troubleshoot data communication cabling. Cable testers such as digital multimeters (DMMs) can be used to test for broken cables and faulty connectors.
Incorrect Answers:
A, D: A POST card is an expansion card that plugs into one of the expansion slots of the server board, and is then used to troubleshoot the server system as it boots.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 498-503.