Certified Information Systems Auditor (CISA) — Question 1257

Which of the following would BEST demonstrate that an effective disaster recovery plan (DRP) is in place?

Answer options

• A. Full operational test
• B. Periodic risk assessment
• C. Annual walk-through testing
• D. Frequent testing of backups

Correct answer: A

Explanation

A full operational test is the best way to demonstrate the effectiveness of a disaster recovery plan, as it simulates real-life scenarios and ensures all components work together. While periodic risk assessments, annual walk-through testing, and frequent backup testing are important, they do not provide the same level of validation for the entire DRP as a full operational test does.