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.
11.
Where performance and reliability are both important, RAID level ____ is used.
Answer: Option 'D'
0+1