What are the usual components of an access control system?

An access control system is designed to regulate who can enter or exit a facility, and its usual components serve specific functions in maintaining security and monitoring access. The correct answer includes key cards, biometric scanners, security personnel, and visitor logs, each of which plays a vital role:

• Key cards are a common method of granting access, allowing individuals to unlock doors or gates with a simple swipe, which helps prevent unauthorized access.

• Biometric scanners enhance security through unique personal identifiers, such as fingerprints or facial recognition, ensuring that only authorized individuals gain entry based on their biological traits.

• Security personnel are integral to an access control system, as they monitor activities, verify identities, and respond to security breaches or incidents, thereby providing a human element to security measures.

• Visitor logs are essential for tracking who accesses a facility, noting visit times, and identifying individuals who may need to be accounted for during an emergency or a security incident.

In contrast, the other options include elements more aligned with general security measures rather than specifically focusing on access control. For example, security cameras and fire alarms (mentioned in another choice) serve as surveillance devices but do not directly control access. Similarly, employee badges and surveillance monitoring might relate to access control, but they do not cover