RAID Structure - 2 - Operating System Questions & Answers

1.

A large number of disks in a system improves the rate at which data can be read or written :

   A.) if the disks are operated on sequentially
   B.) if the disks are operated on selectively
   C.) if the disks are operated in parallel
   D.) all of the mentioned

Answer: Option 'C'

if the disks are operated in parallel

2.

RAID stands for :

   A.) Redundant Allocation of Inexpensive Disks
   B.) Redundant Array of Important Disks
   C.) Redundant Allocation of Independent Disks
   D.) Redundant Array of Independent Disks

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 :

   A.) 100 hours
   B.) 10 days
   C.) 10 hours
   D.) 1000 hours

Answer: Option 'D'

1000 hours

4.

The solution to the problem of reliability is the introduction of __________

   A.) aging
   B.) scheduling
   C.) redundancy
   D.) disks

Answer: Option 'C'

redundancy

5.

The technique of duplicating every disk is known as :

   A.) mirroring
   B.) shadowing
   C.) redundancy
   D.) all of the mentioned

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

   A.) Only I
   B.) Only II
   C.) Both I and II
   D.) Neither I nor II

Answer: Option 'C'

Both I and II

7.

RAID level ______ is also known as memory style error correcting code(ECC) organization.

   A.) 1
   B.) 2
   C.) 3
   D.) 4

Answer: Option 'B'

2

8.

RAID level 3 does not have _________ as in RAID level 1.

   A.) efficiency
   B.) enough storage space for data
   C.) storage overhead
   D.) time consumption overhead

Answer: Option 'C'

storage overhead

9.

A single parity bit can be used for :

   A.) detection
   B.) multiple error corrections
   C.) few error corrections
   D.) all of the mentioned

Answer: Option 'A'

detection

10.

RAID level ______ is also known as bit interleaved parity organisation.

   A.) 0
   B.) 1
   C.) 2
   D.) 3

Answer: Option 'D'

3

RAID Structure - 2 - Operating System Questions & Answers Download Pdf

Recent Posts