220-802 · Question #951
Which of the following is a device intended to prevent physical access to a facility?
The correct answer is D. Mantrap. A mantrap (also called an access control vestibule) is a small room with two interlocking doors - the second door does not open until the first is fully closed and the person is authenticated. This physically prevents unauthorized entry and stops tailgating. Bollards are posts…
Question
Which of the following is a device intended to prevent physical access to a facility?
Options
- ATailgate
- BBollards
- CFirewall
- DMantrap
How the community answered
(29 responses)- B7% (2)
- C3% (1)
- D90% (26)
Explanation
A mantrap (also called an access control vestibule) is a small room with two interlocking doors - the second door does not open until the first is fully closed and the person is authenticated. This physically prevents unauthorized entry and stops tailgating. Bollards are posts that block vehicle access, not personnel. A tailgate is the act of following an authorized person through a secure door, which is the attack a mantrap prevents. A firewall is a network security device, not a physical barrier.
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