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SK0-004 · Question #93

A technician is tasked with creating a test system containing non-critical data. The technician has limited hardware, but needs maximum performance. Which of the following RAID levels should the…

The correct answer is A. 0. RAID 0 uses disk striping with no redundancy, delivering maximum read and write performance at the cost of all fault tolerance.

Server administration

Question

A technician is tasked with creating a test system containing non-critical data. The technician has limited hardware, but needs maximum performance. Which of the following RAID levels should the technician use?

Options

  • A0
  • B1
  • C5
  • D10

How the community answered

(56 responses)
  • A
    91% (51)
  • B
    2% (1)
  • C
    5% (3)
  • D
    2% (1)

Why each option

RAID 0 uses disk striping with no redundancy, delivering maximum read and write performance at the cost of all fault tolerance.

A0Correct

RAID 0 stripes data across all available drives without any parity or mirroring overhead, which maximizes both read and write throughput by distributing I/O across multiple spindles simultaneously. Because no capacity or processing is spent on redundancy calculations, all drive bandwidth is dedicated to performance. This makes it the correct choice when data loss is acceptable and raw speed is the primary requirement.

B1

RAID 1 mirrors data to two drives, halving usable capacity and adding write overhead because data must be committed to both disks on every write operation.

C5

RAID 5 incurs a write penalty because each write requires a read-modify-write parity calculation across all drives, reducing write throughput compared to RAID 0.

D10

RAID 10 combines mirroring and striping for redundancy plus good performance, but requires a minimum of four drives and sacrifices 50% of total capacity for mirroring.

Concept tested: RAID 0 striping performance versus redundancy trade-offs

Source: https://learn.microsoft.com/en-us/windows-server/storage/storage-spaces/storage-spaces-fault-tolerance

Topics

#RAID 0#storage performance#RAID levels#disk striping

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