RAID Structure MCQ

Test your knowledge with important RAID Structure MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more RAID Structure MCQs at Bissoy

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

  efficiency

  খ

  enough storage space for data

  গ

  storage overhead

  ঘ

  time consumption overhead
• RAID level ______ is also known as memory style error correcting code(ECC) organization.
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• A single parity bit can be used for ____________
  ক

  detection

  খ

  multiple error corrections

  গ

  few error corrections

  ঘ

  all of the mentioned
• RAID level ______ is also known as bit interleaved parity organisation.
  ক

  0

  খ

  1

  গ

  2

  ঘ

  3
• RAID level _______ refers to disk mirroring.
  ক

  0

  খ

  1

  গ

  2

  ঘ

  3
• RAID level ________ refers to disk arrays with striping at the level of blocks, but without any redundancy.
  ক

  0

  খ

  1

  গ

  2

  ঘ

  3
• 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
  ক

  Only I

  খ

  Only II

  গ

  Both I and II

  ঘ

  Neither I nor II
• The technique of duplicating every disk is known as ____________
  ক

  mirroring

  খ

  shadowing

  গ

  redundancy

  ঘ

  all of the mentioned
• The solution to the problem of reliability is the introduction of __________
  ক

  aging

  খ

  scheduling

  গ

  redundancy

  ঘ

  disks
• 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 ____________
  ক

  100 hours

  খ

  10 days

  গ

  10 hours

  ঘ

  1000 hours
• RAID stands for ____________
  ক

  Redundant Allocation of Inexpensive Disks

  খ

  Redundant Array of Important Disks

  গ

  Redundant Allocation of Independent Disks

  ঘ

  Redundant Array of Independent Disks
• A large number of disks in a system improves the rate at which data can be read or written if ____________
  ক

  the disks are operated on sequentially

  খ

  the disks are operated on selectively

  গ

  the disks are operated in parallel

  ঘ

  all of the mentioned
• If a disk fails in RAID level ___________ rebuilding lost data is easiest.
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• RAID level 0+1 is used because, RAID level 0 provides ______ whereas RAID level 1 provides ________
  ক

  performance, redundancy

  খ

  performance, reliability

  গ

  redundancy, performance

  ঘ

  none of the mentioned
• The potential overuse of a single parity disk is avoided in RAID level _______
  ক

  3

  খ

  4

  গ

  5

  ঘ

  all of the mentioned
• RAID level ____ spreads parity and data among all N+1 disks rather than storing data in N disks and parity in 1.
  ক

  3

  খ

  4

  গ

  5

  ঘ

  6
• RAID level 5 is also known as ____________
  ক

  bit-interleaved parity organization

  খ

  block-interleaved parity organization

  গ

  block-interleaved distributed parity

  ঘ

  memory-style ECC organization
• A write of a block has to access ____________
  ক

  the disk on which the block is stored

  খ

  parity disk

  গ

  a parity block

  ঘ

  all of the mentioned
• The overall I/O rate in RAID level 4 is ____________
  ক

  low

  খ

  very low

  গ

  high

  ঘ

  none of the mentioned
• In RAID level 4, one block read, accesses __________
  ক

  only one disk

  খ

  all disks simultaneously

  গ

  all disks sequentially

  ঘ

  none of the mentioned
• A performance problem with _________ is the expense of computing and writing parity.
  ক

  non-parity based RAID levels

  খ

  parity based RAID levels

  গ

  all RAID levels

  ঘ

  none of the mentioned
• RAID level _____ is also known as block interleaved parity organisation and uses block level striping and keeps a parity block on a separate disk.
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• RAID level 3 supports a lower number of I/Os per second, because _______________
  ক

  Every disk has to participate in every I/O request

  খ

  Only one disk participates per I/O request

  গ

  I/O cycle consumes a lot of CPU time

  ঘ

  All of the mentioned