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Which RAID level uses double distributed parity?
A. 1
B. 3
C. 5
D. 6
Correct Answer: D
Explanation/Reference:
Double-parity RAID (redundant array of independent disks), also called diagonal-parity RAID, Advanced Data Guarding (RAID_ADG), or RAID-6, is a method of protecting against multiple storage drive failures by creating two sets of parity data on an array of hard disks.
References: http://searchstorage.techtarget.com/definition/double-parity-RAID
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