CompTIA Security+ Question K-53

Encryption of data at rest is important for sensitive information because of which of the following?

A. Facilitates tier 2 support, by preventing users from changing the OS
B. Renders the recovery of data harder in the event of user password loss
C. Allows the remote removal of data following eDiscovery requests
D. Prevents data from being accessed following theft of physical equipment

Answer: D

Data encryption allows data that has been stolen to remain out of the eyes of the intruders who took it as long as they do not have the proper passwords.