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Difficulty: EasyPhysical Security Controls and Environmental Measures

A network administrator needs to implement a physical security control for a data center entrance that prevents unauthorized individuals from following authorized personnel through a doorway (tailgating) by using a specialized room with two interlocking doors. Which physical security control should the administrator deploy?

  1. A mantrapAnswer
  2. B
    A Faraday cage
  3. C
    A biometric scanner on a standard single door
  4. D
    A closed-circuit television (CCTV) system

Answer

A mantrap
A mantrap (or airlock/access control vestibule) features a dual-door interlocking system designed specifically to prevent tailgating. The first door must shut and lock before the second door can be unlocked, restricting entry to one person at a time.

Step-by-Step Solution

1
Analyze the physical access control requirement
The goal is to stop tailgating using an interlocking two-door physical structure.
Tailgating occurs when an unauthenticated person follows an authenticated person through a door.
2
Match the requirement to the appropriate physical security control
A mantrap (access control vestibule) uses interlocking doors to isolate entrants and ensure only one authorized person enters at a time.
The interlocking mechanism prevents both doors from being open simultaneously.

Key Concept

Physical Security Controls: Mantraps and Anti-Tailgating
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Topics

Physical Security Controls and Environmental Measures

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