Which of the following is a function of PACS in airport security?

In the context of airport security, a critical function of a Physical Access Control System (PACS) is to log attempts to breach security areas. This function is essential for maintaining the integrity of airport security protocols and ensuring that any unauthorized access attempts are recorded and can be investigated. By tracking these incidents, security personnel can identify patterns, assess vulnerabilities, and take necessary measures to enhance security measures at the airport.

The functions of PACS primarily focus on monitoring and controlling access to secure areas to protect passengers and airport operations. Logging attempts reinforces accountability within the facility, ensuring that security agencies can act promptly if a breach occurs or if suspicious activity is detected.

The other choices do not align with the primary function of PACS. While unrestricted access to all airport employees would compromise security, conducting passenger interviews is typically handled by security personnel rather than a control system, and serving as a contact for flight information does not pertain to the access control functionalities that PACS offers.