nerdexam
EC-Council

312-49 · Question #377

What is a good security method to prevent unauthorized users from "tailgating"?

The correct answer is C. Man trap. A man trap (or mantrap) is a physical security control specifically designed to prevent tailgating - the practice of an unauthorized person following an authorized person through a secured door. It consists of a small enclosed vestibule with two interlocking doors: the first…

Submitted by kavita_s· Apr 18, 2026Computer Forensics in Today's World

Question

What is a good security method to prevent unauthorized users from "tailgating"?

Options

  • APick-resistant locks
  • BElectronic key systems
  • CMan trap
  • DElectronic combination locks

How the community answered

(31 responses)
  • A
    3% (1)
  • B
    3% (1)
  • C
    94% (29)

Explanation

A man trap (or mantrap) is a physical security control specifically designed to prevent tailgating - the practice of an unauthorized person following an authorized person through a secured door. It consists of a small enclosed vestibule with two interlocking doors: the first door must fully close and authenticate the individual before the second door will open, ensuring only one person passes at a time. Pick-resistant locks, electronic key systems, and electronic combination locks all help control access but do not physically prevent a second person from slipping through behind an authorized user.

Topics

#Physical Security#Access Control#Tailgating Prevention#Man Trap

Community Discussion

No community discussion yet for this question.

Full 312-49 Practice