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? 

Answer options:

A. Full backup window
B. Media costs
C. Restore window
D. Media reliability

D

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.