The best way to test the operational effectiveness of a data backup procedure is to:
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A. B. C. D.C.
The best way to test the operational effectiveness of a data backup procedure is to demonstrate a successful recovery from backup files. This option is represented by option C.
Demonstrating a successful recovery from backup files is the most effective way to test the operational effectiveness of a data backup procedure. This is because the objective of a data backup procedure is to ensure that in the event of a data loss or system failure, critical data can be recovered from the backup files.
By testing the recovery process, an organization can ensure that their backup procedures are adequate to meet their business needs, and they can recover their data within an acceptable time frame. This test will also help to identify any gaps or shortcomings in the backup process that need to be addressed.
Option A, inspecting a selection of audit trails and backup logs, may provide some insight into the frequency and success rate of backup procedures but does not provide conclusive evidence of the backup procedure's effectiveness.
Option B, conducting an audit of files stored offsite, may verify that the backup files are being stored appropriately but does not provide evidence that the data can be recovered successfully.
Option D, interviewing employees to compare actual with expected procedures, may provide insight into the level of compliance with backup procedures but does not provide evidence of the backup procedure's effectiveness in recovering critical data.
Therefore, the best way to test the operational effectiveness of a data backup procedure is to demonstrate a successful recovery from backup files.