CompTIA A+ Core 1 (220-1001) — Question 382

A technician is setting up the storage on a server and uses three SCSI hot-swappable hard drives. The technician configures a RAID array that uses all three drives. Therefore, if one of the drives fails, it can be pulled and replaced with a new drive, and the array will rebuild itself. Which of the following RAID configurations is the technician setting up?

Answer options

• A. 0
• B. 1
• C. 5
• D. 10

Correct answer: C

Explanation

The correct answer is RAID 5, which provides fault tolerance by using parity and allows for one drive failure without data loss, enabling the array to rebuild when a drive is replaced. RAID 0 offers no redundancy, RAID 1 mirrors data for redundancy but requires an even number of drives, and RAID 10 combines mirroring and striping but requires a minimum of four drives.