When handling which of the following components, should a server technician NEVER wear an antistatic grounding strap to prevent damage to the specific component being worked on? Choose all correct options.

A.
Systems containing MOS devices.

B.
Systems containing CMOS devices.

C.
Power-supply units.

D.
Monitors.

Explanation:
When working with high-voltage components, such as monitors and power-supply units, and when generally dealing with large currents, an antistatic strap must NOT be worn.
Wearing an antistatic strap can cause serious damage to the server technician.
Incorrect Answers:
A, B: When working on systems containing MOS and CMOS devices, the server technician should wear an antistatic grounding strap to prevent damage to the specific component being worked on. This will assist in discharging static buildup on the server technician to ground, and not to these static-sensitive memory components.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 393-394.