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    Consider the following statements regarding RAID (Redundant Array of Independent Disks) technology: I. RAID provides greater data reliability throu
    Question

    Consider the following statements regarding RAID (Redundant Array of Independent Disks) technology:
    I. RAID provides greater data reliability through redundancy by storing data across multiple hard drives.
    II. RAID helps eliminate single points of failure and reduces the risk of data loss.
    III. RAID system can increase read/write throughput and overall storage capacity by distributing data across multiple drives.
    Which of the above statements are correct?

    A.

    II and III only

    B.

    I and II only

    C.

    I, II and III

    D.

    I and III only

    E.

    None of the above

    Correct option is C


    • Statement I is correct: RAID uses data redundancy (Mirroring/Parity) to ensure data reliability even if one disk fails.
    • Statement II is correct: RAID minimizes single point of failure by distributing data across multiple disks, enhancing fault tolerance.
    • Statement III is correct: Certain RAID levels (RAID 0, RAID 5, RAID 10) improve I/O performance and aggregate storage capacity through striping & parallel access.
    • Therefore, all three statements correctly describe the functional benefits of RAID systems in storage architecture.

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