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Difficulty: MediumPhysical Security Controls and Environmental Measures

An organization is enhancing the physical access controls for its core data center. Management requires a solution that strictly enforces single-person entry and prevents unauthorized individuals from tailgating behind an authenticated employee into the server hall. Which physical access control mechanism should the network administrator deploy to best satisfy this requirement?

  1. A mantrap physical enclosure equipped with interlocking doors and weight sensorsAnswer
  2. B
    A RFID proximity badge reader attached to a heavy-duty single entry door
  3. C
    A biometric fingerprint scanner installed at the primary entrance door
  4. D
    A closed-circuit television camera system focused directly on the entryway

Answer

A mantrap physical enclosure equipped with interlocking doors and weight sensors is the most effective physical control to prevent tailgating and enforce single-person entry.
A mantrap is a specialized physical access control structure consisting of a small space with two interlocking doors. Once an authorized user unlocks and enters the first door, it closes and locks behind them before the second door will release. Combined with weight or optical sensors, it physically guarantees that only one authenticated person enters the secure area at a time, making it the definitive defense against tailgating.

Step-by-Step Solution

1
Identify the primary requirement
The goal is to physically restrict access so that only one authenticated individual can enter at a time, eliminating tailgating (piggybacking).
Tailgating occurs when an unauthorized person follows an authorized person through a single access portal.
2
Evaluate access control mechanisms against tailgating prevention
Single-door solutions (badge readers, biometrics, CCTV) provide access control or detection, but do not physically block extra persons from entering while the door is open. A mantrap uses two interlocking doors so the first door must close before the second opens, often combining weight sensors to ensure only one person is inside.
Physical enclosure control is required to prevent multiple people from walking through a single door opening.

Key Concept

Physical Access Control and Anti-Tailgating Measures (Mantraps)
Estimated Time:1m 0s
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Topics

Physical Security Controls and Environmental Measures

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