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RAID level 1 refers to?

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in RDBMS by (118k points)
RAID level 1 refers to?

(a) Disk arrays with striping at the level of blocks

(b) Disk mirroring with block striping

(c) Memory style error correcting code

(d) Block interleaved distributed parity

This question was posed to me in an international level competition.

The above asked question is from RAID in division Storage and File Structure of RDBMS

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Right choice is (b) Disk mirroring with block striping

Easiest explanation: RAID level 1 refers to Disk mirroring with block striping. This is also called as RAID 10 or RAID 1+0.

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