Certified Information Systems Auditor (CISA) — Question 1235

When reviewing hard disk utilization reports, an IS auditor observes that utilization is routinely above 95%. Which of the following should be the GREATEST concern to the IS auditor?

Answer options

• A. Availability
• B. Consistency
• C. Data security
• D. Denial of service (DoS) attacks

Correct answer: A

Explanation

The primary concern for the IS auditor should be availability, as high disk utilization can lead to system performance issues and downtime. While consistency, data security, and denial of service attacks are important, they are secondary to ensuring that the system remains operational and accessible to users.