Answer & Explanation

4 Answers
Verified

Option A

They automatically normalize every query.
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 1
Verified

Option B

They disable transactions.
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 2
Verified Correct Answer

Option C

They prevent invalid or inconsistent data states by enforcing rules such as uniqueness, valid references, required values and domain checks.
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 3
Verified

Option D

They make every query return all rows.
Additional Explanation
This option is incorrect for the stated requirement.
Sarkari Resultess
Editorial Answer 4