Certified Information Systems Auditor (CISA) — Question 262

An IS auditor is concerned that unauthorized access to a highly sensitive data center might be gained by piggybacking or tailgating. Which of the following is the BEST recommendation?

Answer options

• A. Airlock entrance
• B. Intruder alarms
• C. Procedures for escorting visitors
• D. Biometrics

Correct answer: A

Explanation

The best recommendation is an Airlock entrance, as it provides a physical barrier that can prevent unauthorized access by requiring individuals to verify their identity before entering. While intruder alarms, procedures for escorting visitors, and biometrics are useful security measures, they do not offer the same level of protection against piggybacking and tailgating as an airlock entrance does.