CompTIA Security+ (SY0-501) — Question 723

A datacenter engineer wants to ensure an organization's servers have high speed and high redundancy and can sustain the loss of two physical disks in an array.
Which of the following RAID configurations should the engineer implement to deliver this functionality?

Answer options

Correct answer: D

Explanation

RAID 10 combines the benefits of RAID 0 and RAID 1, providing both speed and redundancy, allowing for the loss of up to two disks as long as they are not in the same mirrored pair. RAID 0 offers no redundancy, RAID 1 can only tolerate one disk failure, RAID 5 can handle one disk failure, and RAID 50 combines RAID 5 and RAID 0 but still cannot sustain the loss of two disks in the same RAID 5 set.