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 androllforward 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 ofall 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 rollforward 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.