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(ISC)2

CERTIFIED-IN-CYBERSECURITY · Question #78

Which physical access control would be MOST effective against tailgating?

The correct answer is A. Turnstiles. Tailgating (also called piggybacking) occurs when an unauthorized person follows an authorized person through a secured entry point without independently authenticating. Turnstiles are specifically engineered to enforce one-person-at-a-time passage, physically preventing a…

Access Controls Concepts

Question

Which physical access control would be MOST effective against tailgating?

Options

  • ATurnstiles
  • BBarriers
  • CFences
  • DLocks

How the community answered

(30 responses)
  • A
    90% (27)
  • C
    3% (1)
  • D
    7% (2)

Explanation

Tailgating (also called piggybacking) occurs when an unauthorized person follows an authorized person through a secured entry point without independently authenticating. Turnstiles are specifically engineered to enforce one-person-at-a-time passage, physically preventing a second person from passing simultaneously. Barriers and fences control perimeter access but do not enforce single-entry at a doorway. Locks secure the door but do not prevent someone from slipping through behind an authorized user. Turnstiles directly counter the mechanics of tailgating.

Topics

#Physical Security#Access Control#Tailgating Prevention#Entry Control

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