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      Question

      What does 'RAID' stand for in storage systems and what

      does RAID 5 specifically provide?
      A Redundant Array of Independent Disks — RAID 5 uses mirroring across 2 disks allowing redundancy of data Correct Answer Incorrect Answer
      B Redundant Array of Independent Disks — RAID 5 uses striping with distributed parity, tolerating one disk failure Correct Answer Incorrect Answer
      C Rapid Access of Integrated Data — RAID 5 provides full disk backup so that system can be fault tolerant Correct Answer Incorrect Answer
      D Redundant Array of Integrated Drives — RAID 5 uses striping without redundancy for maximum speed Correct Answer Incorrect Answer
      E Reliable Access of Independent Data — RAID 5 requires a minimum of 6 disks Correct Answer Incorrect Answer

      Solution

      RAID 5 stripes data and parity information across a minimum of 3 disks. Parity is distributed (not on a dedicated drive), allowing any single disk to fail without data loss.The failed disk's data can be reconstructed from parity. RAID 0 = striping only (speed, no redundancy). RAID 1 = mirroring (two copies). RAID 6 = two parity blocks (tolerates two failures). Banks use RAID for high-availability storage in core banking servers.

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