Which of the following should be the MOST important criterion in evaluating a backup solution for sensitive data that must be retained for a long period of time due to regulatory requirements?

A.
Full backup window

B.
Media costs

C.
Restore window

D.
Media reliability

Explanation:
To comply with regulatory requirements, the media should be reliable enough to ensure an organization’s ability to recovery the data should they be required for any reason. Media price is a consideration, but should not be more important than the ability to provide the required reliability.
Choices A and C are less critical than reliability.