How often should the full systems restore process be tested?

A.
Once a week.

B.
Once a month.

C.
Once a quarter.

D.
Once every six months.

Explanation:
A full systems restore must be tested minimally once a quarter.
Incorrect Answers:
A: Backup tapes for critical servers are usually tested at least once a week.
B: Backup tapes for all systems other than critical systems, are usually tested once a month.
D: The full systems restore process should be tested at least four times a year, and not twice a year.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 547-548.