Which of the following should you preserve for permanent cabling?

A.
Cables that run overhead should be preserving for permanent cabling.

B.
Vertical cables that run within and between rack frames are usually kept for permanent cabling.

C.
The under-floor pathways should be reserved for permanent cabling.

D.
Horizontal cables that run within and between rack frames are usually kept for permanent cabling

Explanation:
The under-floor pathways should be reserved for permanent cabling, whereas overhead runs can be used for temporary cabling.
Incorrect
Answers:
A: The under-floor pathways should be reserved for permanent cabling, whereas overhead runs can be used for temporary cabling.
B, D: One way to simplify rack assembly and provide unified cable management is to use common rack frames and provide enough vertical and horizontal cable management hardware within and between rack frames.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 251-273.