Which of the following RAID levels will you use to implement a RAID system for providing fault
tolerance to a database?
A.
RAID 1
B.
RAID 10
C.
RAID 5
D.
RAID 0
Explanation:
RAID 1 is used to implement a RAID system for providing fault tolerance to a database. RAID 1
mirrors the contents of the disks, making a form of 1:1 ratio realtime backup. The contents of each
disk in the array are identical to that of every other disk in the array. A RAID 1 array requires a
minimum of two drives.D is incorrect. RAID level 0 does not provide fault tolerance. If one of the disks in the
system fails, you can lose access to data. This level provides the best performance of the read and
write operations.