Which of the following can be used to provide a central location for all AC cables to connect?

A.
Rack-mounted power conditioners.

B.
Power centers on the floor or that mount on a wall.

C.
Using wireless networks and peripherals.

D.
None of the above.

Explanation:
Rack-mounted power conditioners can be used to provide a central location for all AC cables to connect. This assists in eliminating a lot of clutter in your server cabling system.
Incorrect
Answers:
B: Power centers on the floor or that mount on a wall assist in providing surge protection.
They also serve as a central, convenient location to switch peripheral equipment on/off.
C: Using wireless networks and peripherals can assist in reducing the usage of cabling.
D: Rack-mounted power conditioners is the correct answer.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 456-457.