easyMultiple ChoiceObjective-mapped
220-1102 Practice Question: Implementing a new policy to prevent tailgating…
A company is implementing a new policy to prevent tailgating at the main entrance. Which physical security control should they deploy?
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 uses two interlocking doors to ensure only one person can enter at a time, effectively preventing tailgating. This tests understanding of specialized access controls designed to enforce one-person-per-authentication.
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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Security cameras
Why it's wrong here
Security cameras are primarily monitoring and surveillance tools designed to record events for later review or real-time observation. While they can deter some unauthorized entry and provide forensic evidence of tailgating incidents, they do not physically prevent an unauthorized individual from following an authorized person through an access point. Their function is detection and documentation, not active prevention.
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Biometric reader
Why it's wrong here
A biometric reader authenticates an individual's identity based on unique physical characteristics, such as fingerprints or iris patterns, to grant access. However, once the authorized user is authenticated and the door unlocks, a biometric reader alone does not physically impede an unauthorized person from closely following the legitimate user through the same open doorway before it closes. It verifies identity but lacks a mechanism to enforce single-person entry.
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Mantrap
Why this is correct
A mantrap is a security vestibule featuring two interlocking doors, where only one door can be open at any given time. After an authorized individual authenticates and enters the first door, it closes behind them, and they are then verified again before the second door opens, allowing exit into the secure area. This design physically isolates individuals, ensuring that only one person can pass through the controlled access point at a time, thereby directly and effectively preventing tailgating.
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Badge reader
Why it's wrong here
A badge reader grants access by verifying credentials presented on an RFID card or similar token, unlocking a door for an authorized user. While it controls who can initiate the door opening, it offers no physical barrier to prevent an unauthorized individual from closely following the authenticated person through the open doorway before it automatically closes. Its primary function is credential-based access control, not single-person throughput enforcement.
Go deeper
Related to this question
Learn chapter
Windows Security Features
Key term
Authentication
Authentication is the process of verifying that someone or something is who or what it claims to be before granting access to a system or resource.
Key term
Security control
A security control is a safeguard or countermeasure designed to protect the confidentiality, integrity, and availability of information systems and data.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1202 practice question is part of Courseiva's free CompTIA 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 220-1202 exam.