1.
RAID level 3 supports a lower number of I/Os per second, because _______________
Answer: Option 'A'
Every disk has to participate in every I/O request
2.
RAID level _____ is also known as block interleaved parity organisation and uses block level striping and keeps a parity block on a separate disk.
Answer: Option 'D'
4
3.
A performance problem with _________ is the expense of computing and writing parity.
Answer: Option 'B'
parity based RAID levels
4.
In RAID level 4, one block read, accesses __________
Answer: Option 'A'
only one disk
5.
A write of a block has to access :
Answer: Option 'D'
all of the mentioned
6.
RAID level 5 is also known as :
Answer: Option 'C'
block-interleaved distributed parity
7.
RAID level ____ spreads parity and data among all N+1 disks rather than storing data in N disks and parity in 1.
Answer: Option 'C'
5
8.
The potential overuse of a single parity disk is avoided in RAID level _______
Answer: Option 'D'
5
9.
RAID level 0+1 is used because, RAID level 0 provides ______ whereas RAID level 1 provides ________
Answer: Option 'B'
performance, reliability
10.
If a disk fails in RAID level ___ rebuilding lost data is easiest.
Answer: Option 'A'
Data can be copied from another disk in raid level 1, for other raid levels all other disks have to be accessed.