Visitors entering a building are required to close the back door before the front door of the same entry
room is open. Which of the following is being described?

A.
Tailgating

B.
Fencing

C.
Screening

D.
Mantrap

Explanation:
Mantraps are designed to contain an unauthorized, potentially hostile person/individual physically until
authorities arrive. Mantraps are typically manufactured with bulletproof glass, high-strength doors, and
locks and to allow the minimal amount of individuals depending on its size. Some mantraps even include
scales that will weigh the person. The doors are designed in such a way as to open only when the
mantrap is occupied or empty and not in-between. This means that the backdoor must first close before
the front door will open; exactly what is required in this scenario.
Incorrect Answers:
A: Tailgating is the term used for someone being so close to you when you enter a building that they are
able to come in right behind you without needing to use a key, a card, or any other security device.B: Fencing is perimeter security to keep unauthorized people off your premises.
C: Screening does not necessitate people to close or open doors.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, p. 371