1.
A large number of disks in a system improves the rate at which data can be read or written :
Answer: Option 'C'
if the disks are operated in parallel
2.
RAID stands for :
Answer: Option 'D'
Redundant Array of Independent Disks
3.
If the mean time to failure of a single disk is 100,000 hours, then the mean time to failure of some disk in an array of 100 disks will be :
Answer: Option 'D'
1000 hours
4.
The solution to the problem of reliability is the introduction of __________
Answer: Option 'C'
redundancy
5.
The technique of duplicating every disk is known as :
Answer: Option 'A'
mirroring
6.
The mean time to failure of a mirrored disk depends on :
I) the mean time to failure of individual disks
II) the mean time to repair
Answer: Option 'C'
Both I and II
7.
RAID level ______ is also known as memory style error correcting code(ECC) organization.
Answer: Option 'B'
2
8.
RAID level 3 does not have _________ as in RAID level 1.
Answer: Option 'C'
storage overhead
9.
A single parity bit can be used for :
Answer: Option 'A'
detection
10.
RAID level ______ is also known as bit interleaved parity organisation.
Answer: Option 'D'
3
11.
RAID level _______ refers to disk mirroring.
Answer: Option 'B'
1
12.
RAID level ________ refers to disk arrays with striping at the level of blocks, but without any redundancy.
Answer: Option 'A'
0