CGRC Control Implementation Practice Question
What is the physical security control used to prevent piggybacking at an entry point?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Mantrap
A mantrap is a physical system that requires one door to be closed before the other opens, preventing unauthorized entry.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Biometric scanner
Why it's wrong here
While this controls identity, it does not prevent a second person from following through.
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Mantrap
Why this is correct
A mantrap specifically prevents tailgating/piggybacking.
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CCTV camera
Why it's wrong here
CCTV is a detective control, not a preventative physical barrier.
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Security guard
Why it's wrong here
While effective, it is not an automated physical access control system.
About these practice questions
One of 199 original CGRC practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official (ISC)² exam blueprint
This CGRC practice question is part of Courseiva's free (ISC)² certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CGRC exam.