Answer & Explanation

4 Answers
Verified

Option A

It means deleting duplicates.
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 1
Verified Correct Answer

Option B

Replication copies database changes or state from a source to one or more replicas for availability, scaling reads, or other operational goals.
Additional Explanation
Correct implementation. Prefer parameterized queries in application code, validate affected rows for UPDATE/DELETE, and use transactions for related writes.
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Editorial Answer 2
Verified

Option C

It means splitting one table into columns.
Additional Explanation
This option is incorrect for the stated requirement.
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Editorial Answer 3
Verified

Option D

It is identical to normalization.
Additional Explanation
This option is incorrect for the stated requirement.
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Editorial Answer 4