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Difficulty: EasySecurity Program Elements and Physical Access Controls

Which physical security control uses a set of two interlocking doors to directly prevent unauthorized individuals from tailgating into a secure data center facility?

  1. A mantrap vestibuleAnswer
  2. B
    An extended IPv4 access control list
  3. C
    A centralized TACACS+ server
  4. D
    Switch port security with sticky MAC learning

Answer

A mantrap vestibule is the correct physical security control designed specifically to prevent tailgating by utilizing interlocking doors.
A mantrap vestibule features two interlocking doors where only one door can be open at a time. Once a user scans their credentials to enter the first door, that door must close fully before the second door unlocks, isolating individuals and preventing unauthorized tailgating into restricted areas.

Step-by-Step Solution

1
Identify the primary threat described in the scenario.
The target threat is tailgating (piggybacking), where an unauthorized individual physically follows an authorized person through a secure doorway.
Preventing tailgating requires physical barriers capable of enforcing single-person entry verification.
2
Differentiate physical security controls from logical network security controls.
A mantrap vestibule physically holds an individual between two interlocking doors until identity/access is verified. Logical controls (ACLs, AAA, Port Security) operate entirely inside network software/hardware interfaces.
Only physical access controls like mantraps physically constrain human movement at facility entrances.

Key Concept

Physical Access Controls - Mantraps
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Topics

Security Program Elements and Physical Access Controls

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