Question 28

Security guard provides the best prevention against tailgating.

A security guard positioned at an access control vestibule can effectively monitor and manage access, ensuring that only authorized individuals enter and preventing tailgating.

A) PIN

While a PIN can provide a layer of security by requiring users to enter a code, it does not physically prevent individuals from following others into a restricted area. This method relies heavily on the user's compliance and can be easily compromised if someone observes the entry.

B) Access card

An access card requires users to swipe or tap to gain entry, which adds a level of authentication. However, it does not physically stop someone from tailgating if they follow closely behind an authorized user. This option also relies on the vigilance of the cardholder.

C) Security guard

A security guard is the most effective option as they can actively monitor and control access at the vestibule. They can intervene in real-time to prevent unauthorized individuals from entering behind someone else, thereby significantly reducing the risk of tailgating.

D) CCTV

CCTV can serve as a deterrent and provide evidence of tailgating incidents, but it does not actively prevent the occurrence. While it may help in identifying violators after the fact, it lacks the immediate enforcement capability that a security guard offers.

Conclusion

The presence of a security guard at an access control vestibule is paramount in preventing tailgating, as it allows for real-time monitoring and intervention. Options like PINs and access cards provide authentication but lack the physical deterrent needed to stop unauthorized access. CCTV serves only as a passive measure, making the guard the most effective solution to combat this security risk.