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CISA Practice Question: A company requires employees to use smart cards…
A company requires employees to use smart cards for facility access. Which additional control would BEST prevent tailgating?
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
✓
Install mantraps at entry points
Mantraps prevent tailgating by allowing only one person per authentication. Biometrics address identity, not tailgating. Random audits are detective. Keypad locks are simple and do not prevent tailgating.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Require biometric authentication
Why it's wrong here
Biometric authentication strengthens identity verification but does not physically prevent tailgating.
- ✗
Use keypad locks on doors
Why it's wrong here
Keypad locks provide access but cannot detect or prevent multiple people entering on one code.
- ✗
Conduct random audits of access logs
Why it's wrong here
Audits are detective controls and do not prevent tailgating in real time.
- ✓
Install mantraps at entry points
Why this is correct
Mantraps create a physical barrier that allows only one authenticated person to enter at a time, preventing tailgating.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CISA practice question is part of Courseiva's free ISACA 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 CISA exam.