Question

1. a user wants a storage setup that protects data if one of two drives fails, without increasing total capacity. which configuration should the technician recommend? a) raid 0 b) raid 1 c) raid 5 d) raid 10

Explanation:

• RAID 0: No data redundancy. If one drive fails, data is lost.
• RAID 1: Mirrors data. Capacity is same as one drive. Protects data if a drive fails.
• RAID 5: Uses parity. Needs at least 3 drives.
• RAID 10: Combines RAID 1 and 0. Needs at least 4 drives.

Answer:

B. RAID 1