Answer & Explanation

4 Answers
Verified Correct Answer

Option A

Recovery Time Objective describes the target maximum time to restore a service after a disruption.
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

The number of foreign keys.
Additional Explanation
This option is incorrect for the stated requirement.
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Editorial Answer 2
Verified

Option C

The number of rows returned by SELECT.
Additional Explanation
This option is incorrect for the stated requirement.
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Editorial Answer 3
Verified

Option D

The number of columns in a table.
Additional Explanation
This option is incorrect for the stated requirement.
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Editorial Answer 4