Which of the following best describes electronic vaulting?

A.
Backing up bulk data to an off-site facility

B.
Backing up the transaction logs to an off-site facility

C.
Backing up all data to an on-site mirroring facility

D.
Backing up data to two disks with one controller

Explanation:
Electronic vaulting is a mechanism to protect data by immediately
copying it to an off-site facility once it has been altered.