Answer & Explanation

4 Answers
Verified Correct Answer

Option A

It records enough information about changes to support recovery and durability mechanisms, depending on the DBMS.
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 1
Verified

Option B

It replaces every database index.
Additional Explanation
This option is incorrect for the stated requirement.
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Editorial Answer 2
Verified

Option C

It is only a list of SELECT statements.
Additional Explanation
This option is incorrect for the stated requirement.
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Editorial Answer 3
Verified

Option D

It is a user interface log.
Additional Explanation
This option is incorrect for the stated requirement.
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Editorial Answer 4