Certified Information Systems Auditor (CISA) — Question 398

Which of the following is the BEST indicator that an application system's agreed-upon level of service has been met?

Answer options

• A. Transaction response time
• B. Bandwidth usage logs
• C. CPU utilization reports
• D. Security incident reports

Correct answer: A

Explanation

Transaction response time is the most critical metric for measuring whether an application meets its service level agreements, as it directly affects user experience. While bandwidth usage, CPU utilization, and security incidents provide useful insights, they do not specifically indicate if the application is performing at the expected service level.