Disk mirroring or _________ is the replication of logical disk volumes onto separate physical hard disks in real time to ensure continuous availability.

A.
RAID 1

B.
RAID 2

C.
RAID 3

D.
RAID 4

Explanation:
Disk mirroring or RAID1 is the replication of logical disk volumes onto
separate physical hard disks in real time to ensure continuous availability. A
mirrored volume is a complete logical representation of separate volume copies.