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SK0-003 · Question #181

RAID 5 can be BEST described as which of the following?

The correct answer is C. Striping with distributed parity. RAID 5 is characterized by its use of data striping across multiple disks combined with distributed parity information for fault tolerance.

Server hardware installation and management

Question

RAID 5 can be BEST described as which of the following?

Options

  • AMirroring with striping
  • BStriping with dedicated parity
  • CStriping with distributed parity
  • DIndependent disks with shared parity

How the community answered

(65 responses)
  • A
    5% (3)
  • B
    2% (1)
  • C
    92% (60)
  • D
    2% (1)

Why each option

RAID 5 is characterized by its use of data striping across multiple disks combined with distributed parity information for fault tolerance.

AMirroring with striping

Mirroring with striping describes RAID 0+1 or RAID 10, which uses both mirroring and striping techniques, unlike RAID 5 that relies on parity for redundancy.

BStriping with dedicated parity

Striping with dedicated parity is characteristic of RAID 3, where parity data resides on a single, dedicated disk, which can become a bottleneck.

CStriping with distributed parityCorrect

RAID 5 employs block-level striping across a minimum of three disks, and its parity information is distributed evenly among all member disks, rather than being stored on a single dedicated drive. This distributed parity allows the array to recover from the failure of any single disk without data loss, providing both performance benefits and fault tolerance.

DIndependent disks with shared parity

While RAID 5 uses independent disks, the term 'shared parity' is less precise than 'distributed parity,' which accurately describes how parity blocks are spread across all disks in the array.

Concept tested: RAID 5 architecture and parity distribution

Source: https://learn.microsoft.com/en-us/windows-server/storage/disk-management/understanding-raid

Topics

#RAID#RAID 5#distributed parity

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