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2.
3.
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Answer (Detailed Solution Below)

Option 3 : RAID 10, because mirroring plus striping gives fast reads with full redundancy

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Detailed Solution

सही उत्तर RAID 10, because mirroring plus striping gives fast reads with full redundancy है।

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Question:

A database server needs the fastest possible read performance while still surviving a disk failure. Which RAID level best fits? / डेटाबेस सर्वर को डिस्क विफलता सहते हुए सबसे तेज़ रीड प्रदर्शन चाहिए। कौन-सा RAID स्तर सबसे उपयुक्त है?

1.
RAID 0, because striping is fastest even though it has no redundancy
2.
RAID 5, because parity computation accelerates reads
3.
RAID 10, because mirroring plus striping gives fast reads with full redundancy
4.
RAID 6, because double parity doubles the read speed

Correct Answer: RAID 10, because mirroring plus striping gives fast reads with full redundancy

RAID 10 stripes reads across mirrors, delivering near-RAID 0 read speed while any single disk (and often more) can fail safely; RAID 5/6 pay a parity penalty on writes. / RAID 10 मिररों पर रीड स्ट्राइप करता है — RAID 0 जैसी गति के साथ पूर्ण redundancy। Option (d) is the trap — extra parity costs performance, it does not double speed.

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