Certified Information Systems Auditor (CISA) — Question 257

Transaction records from a business database were inadvertently deleted, and system operators decided to restore from a snapshot copy. Which of the following provides the BEST assurance that the transactions were recovered successfully?

Answer options

• A. Recount the transaction records to ensure no records are missing.
• B. Compare transaction values against external statements to verify accuracy.
• C. Rerun the process on a backup machine to verify the results are the same.
• D. Review transaction recovery logs to ensure no errors were recorded.

Correct answer: D

Explanation

Option D is the best choice because reviewing transaction recovery logs will directly indicate whether any errors occurred during the restoration process. While options A, B, and C can help verify the integrity of records, they do not provide direct evidence of a successful recovery without errors.