Which of the following controls would provide the GREATEST assurance of database integrity?

A.
Audit log procedures

B.
Table link/reference checks

C.
Query/table access time checks

D.
Rollback and rollforward database features

Explanation:
Performing table link/reference checks serves to detect table linking errors (such as completeness and
accuracy of the contents of the database), and thus provides the greatest assurance of database integrity. Audit
log procedures enable recording of all events that have been identified and help in tracing the events. However,
they only point to the event and do not ensure completeness or accuracy of the database’s contents. Querying/
monitoring table access time checks helps designers improve database performance, but not integrity. Rollback
and roll forward database features ensure recovery from an abnormal disruption. They assure the integrity of
the transaction that was being processed at the time of disruption, but do not provide assurance on the integrity
of the contents of the database.