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NIELIT 2017 OCT Scientific Assistant A (IT) - Section B: 26

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Which level of RAID refers to disk mirroring with block striping?

  1. RAID level $1$
  2. RAID level $2$
  3. RAID level $0$
  4. RAID level $3$
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The standard RAID levels comprise a basic set of RAID (redundant array of independent disks) configurations that employ the techniques of striping, mirroring, or parity to create large reliable data stores from multiple general-purpose computer hard disk drives (HDDs).

  1. RAID 0: Stripping
  2. RAID 1: Mirroring
  3. RAID 2: Hamming code for error detection
  4. RAID 3: Byte-level striping with a dedicated parity disk
  5. RAID 4: Block-level striping with block-level striping with two parity blocks parity
  6. RAID 5: Block-level striping with distributed parity
  7. RAID 6: Block-level striping with double distributed parity.

ANSWER A

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