CISSP: Certified Information Systems Security Professional

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QuestionQ32

VerifiedAsset Security

An organization has requested storage area network (SAN) disks for a new project. Which Redundant Array of Independent Disks (RAID) level offers the BEST redundancy and fault tolerance?

Explanation

RAID 1 stores identical copies of data on mirrored disks, so data remains available if a mirrored disk fails. RAID 3, RAID 4, and RAID 5 use single-parity protection and normally tolerate only one disk failure.

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