After copying a sensitive document from his desktop to a flash drive, Joe, a user, realizes that the
document is no longer encrypted. Which of the following can a security technician implement to
ensure that documents stored on Joe’s desktop remain encrypted when moved to external media
or other network based storage?

A.
Whole disk encryption

B.
Removable disk encryption

C.
Database record level encryption

D.
File level encryption

Explanation:
Encryption is used to ensure the confidentiality of information. In this case you should make use of
file level encryption. File level encryption is a form of disk encryption where individual files or
directories are encrypted by the file system itself. This is in contrast to full disk encryption where
the entire partition or disk, in which the file system resides, is encrypted.