CompTIA A+ Core 1 (220-1101) — Question 328

A technician is configuring a desktop RAID to allow for the best I/O performance and the most storage capacity possible. Which of the following RAID types should the technician use?

Answer options

• A. 0
• B. 5
• C. 6
• D. 10

Correct answer: A

Explanation

RAID 0 provides the highest I/O performance and the maximum storage capacity since it stripes data across multiple disks without any redundancy. RAID 5 and RAID 6 offer data protection through parity, which reduces performance and usable storage space, while RAID 10, although faster than RAID 5 and 6, also requires more disks for mirroring, thus lowering the overall capacity.