What is the PRIMARY purpose of using redundant array of inexpensive disks (RAID) level zero?

A.
To improve system performance.

B.
To maximize usage of hard disk space.

C.
To provide fault tolerance and protection against file server hard disk crashes.

D.
To implement integrity.

Explanation:
RAID level 0 offers no fault tolerance, just performance improvements.
Incorrect Answers:
B: RAID level 0 provides no increase in hard disk usage compared to non-raid disks.
C: RAID level 0 offers no fault tolerance.
D: RAID does provide integrity.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 142