Answer & Explanation

4 Answers
Verified

Option A

A successful COMMIT.
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 1
Verified Correct Answer

Option B

Deleting one fact unintentionally removes the only stored copy of another fact.
Additional Explanation
Correct implementation. Prefer parameterized queries in application code, validate affected rows for UPDATE/DELETE, and use transactions for related writes.
Sarkari Resultess
Editorial Answer 2
Verified

Option C

Deleting an index only.
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 3
Verified

Option D

A query returning duplicates by design.
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 4