Which of the following best describe the back-out plan with regards to the Server Change Management needs?

A.
During server upgrades, reconfigurations, or expansions, you should be able to back out if completed changes threaten continued server operations.

B.
A back-out plan is not as important as a roll-out plan.

C.
There is need to spend time on a backup plan, because it is time and money consuming.

D.
None of the above.

Explanation:
During server upgrades, reconfigurations, or expansions, always be able to back out if completed changes threaten continued server operations.
Incorrect Answers
B: A back-out plan is just as important as a roll-out plan.
C: A back-out plan is just as important as a roll-out plan. Hopefully, it will never be used. But if and when it’s needed, it will be worth the time spent putting it together.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, p. 358