Which of the following backup techniques is the MOST appropriate when an organization requires extremely
granular data restore points, as defined in the recovery point objective (RPO)?

A.
Virtual tape libraries

B.
Disk-based snapshots

C.
Continuous data backup

D.
Disk-to-tape backup

Explanation:
The recovery point objective (RPO) is based on the acceptable data loss in the case of a disruption. In this
scenario the organization needs a short RPO. Virtual tape libraries, disk-based snapshots and disk-to-tape
backup would require time to complete the backup, while continuous data backup happens online (in real time).