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.
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)- A5% (3)
- B2% (1)
- C92% (60)
- D2% (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.
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.
Striping with dedicated parity is characteristic of RAID 3, where parity data resides on a single, dedicated disk, which can become a bottleneck.
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.
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
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