When used with an access control vestibule, which of the following would provide the best prevention against tailgating?

Rationale

Using a security guard provides the best prevention against tailgating in an access control vestibule.

A security guard is capable of actively monitoring the entrance and can intervene if they observe unauthorized individuals attempting to tailgate behind authorized personnel, thereby providing a direct human element to access control.

A (PIN) YOUR ANSWER

A Personal Identification Number (PIN) can be effective for individual authentication but does not prevent someone from physically following an authorized person into the vestibule. If an authorized user fails to ensure no one is behind them, a PIN alone cannot stop tailgating.

B (Access card) YOUR ANSWER

While access cards help authenticate users, they do not inherently prevent someone from entering behind an authorized individual. If an authorized user swipes their card and allows someone else to follow, the access card does not provide any physical deterrent to tailgating.

C (Security guard) CORRECT

A security guard actively monitors the entrance, providing oversight and the ability to address any suspicious behavior in real-time. Their presence acts as a significant deterrent to tailgating, as they can challenge individuals who attempt to enter without authorization, ensuring only one person enters at a time.

D (CCTV) YOUR ANSWER

Closed-circuit television (CCTV) can serve as a surveillance tool that records entry but does not prevent tailgating in real-time. While footage may help identify tailgating incidents after they occur, it does not provide immediate intervention or deterrence.

Conclusion

Effective prevention against tailgating in access control vestibules requires proactive measures. Among the options provided, having a security guard on-site stands out as the most effective solution, as it introduces immediate human oversight to deter unauthorized entry. Other methods, such as PINs, access cards, and CCTV, lack the capability to physically engage or prevent unauthorized individuals from entering alongside authorized personnel.

When used with an access control vestibule, which of the following would provide the best prevention against tailgating?

Using a security guard provides the best prevention against tailgating in an access control vestibule.

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