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SK0-003 · Question #258

Which of the following BEST describes RAID 5?

The correct answer is D. High performance and fault tolerance. RAID 5 combines disk striping with distributed parity, offering both good read performance and fault tolerance against a single disk failure. It balances speed with data protection for general-purpose storage.

Server hardware installation and management

Question

Which of the following BEST describes RAID 5?

Options

  • AFault tolerance and failure recovery
  • BFault tolerance and zero configuration
  • CZero configuration and high performance
  • DHigh performance and fault tolerance

How the community answered

(63 responses)
  • A
    5% (3)
  • B
    2% (1)
  • C
    2% (1)
  • D
    92% (58)

Why each option

RAID 5 combines disk striping with distributed parity, offering both good read performance and fault tolerance against a single disk failure. It balances speed with data protection for general-purpose storage.

AFault tolerance and failure recovery

While RAID 5 does offer fault tolerance and failure recovery, the 'BEST' description should encompass its performance characteristics alongside its protection features, which option D does more comprehensively.

BFault tolerance and zero configuration

RAID 5 requires configuration to set up the array and distribute parity, so it does not offer zero configuration.

CZero configuration and high performance

RAID 5 requires configuration and does not offer zero configuration, making this option incorrect despite mentioning high performance.

DHigh performance and fault toleranceCorrect

RAID 5 provides high performance for read operations due to data striping across multiple disks, and it offers fault tolerance through distributed parity, allowing the reconstruction of data if one disk fails. The parity information is spread across all disks, enabling single disk redundancy while still providing performance benefits from striping.

Concept tested: RAID 5 characteristics

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

Topics

#RAID#RAID 5#fault tolerance#performance

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