220-801 · Question #208
Which of the following levels of RAID is MOST likely to increase performance while NOT offering additional reliability?
The correct answer is A. RAID 0. RAID 0 uses disk striping to spread I/O across multiple drives for maximum performance but provides zero fault tolerance - any single drive failure destroys all data.
Question
Which of the following levels of RAID is MOST likely to increase performance while NOT offering additional reliability?
Options
- ARAID 0
- BRAID 1
- CRAID 5
- DRAID 10
How the community answered
(33 responses)- A88% (29)
- B3% (1)
- C6% (2)
- D3% (1)
Why each option
RAID 0 uses disk striping to spread I/O across multiple drives for maximum performance but provides zero fault tolerance - any single drive failure destroys all data.
RAID 0 distributes data in stripes across two or more drives, allowing read and write operations to occur in parallel and significantly improving throughput. It contains no parity or mirroring, so it offers no data redundancy whatsoever; a single disk failure results in complete data loss.
RAID 1 mirrors data identically across two drives, providing full redundancy at the cost of usable capacity, with little to no performance gain on writes.
RAID 5 stripes data with distributed parity, offering both improved read performance and fault tolerance for a single drive failure.
RAID 10 combines mirroring and striping, providing both strong performance and fault tolerance, but at the cost of 50% usable capacity.
Concept tested: RAID 0 striping - performance without redundancy
Source: https://learn.microsoft.com/en-us/windows-server/storage/storage-spaces/storage-spaces-fault-tolerance
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