Multiple choice technology

Which RAID level is used to configure High Availability?

  1. RAID-0

  2. RAID-1

  3. RAID-2

  4. All of the above

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

RAID 1 (mirroring) provides high availability by duplicating data across two or more disks. If one disk fails, the system continues operating seamlessly from the mirror. RAID 0 offers no redundancy (striping only), RAID 2 is obsolete and rarely used in practice. Mirroring is the simplest HA solution.