Which of the following is a lack of improper cable management? (Choose all that apply)

A.
Poor scalability planning for system upgrading

B.
Disregard for relationships between air flow and the amount of space consumed by cabling

C.
Disorganized cable routing in high port-density applications

D.
None of the above

Explanation:
These include poor scalability planning for system upgrading, disregard for the impact of bend radius on network performance, disorganized cable routing in high port-density applications, and disregard for relationships between air flow and the amount of space consumed by cabling.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 251-273.