220-802 · Question #364
A company wants to prevent non-authorized users from entering into a secure building. Which of the following will BEST mitigate this activity?
The correct answer is C. Install mantraps. Mantraps are physical security mechanisms that create a controlled airlock-style entry point, effectively preventing tailgating and unauthorized physical access to secure areas.
Question
A company wants to prevent non-authorized users from entering into a secure building. Which of the following will BEST mitigate this activity?
Options
- ATrain users on tailgating
- BImplement an escort policy
- CInstall mantraps
- DRequire all users to have badges
How the community answered
(27 responses)- A4% (1)
- B4% (1)
- C81% (22)
- D11% (3)
Why each option
Mantraps are physical security mechanisms that create a controlled airlock-style entry point, effectively preventing tailgating and unauthorized physical access to secure areas.
Training users on tailgating raises awareness but does not physically prevent an unauthorized person from entering.
An escort policy is a procedural control that relies on human enforcement and can be bypassed or ignored.
A mantrap consists of two interlocking doors where the first door must close and verify the entrant before the second door opens, making it physically impossible for an unauthorized person to slip in behind an authorized user. This is a direct technical countermeasure against unauthorized entry, unlike policy-based controls. It enforces access control at the physical layer without relying on human compliance.
Requiring badges is an identification control but does not physically stop a non-badged person from following someone through an open door.
Concept tested: Physical security controls - mantraps preventing tailgating
Source: https://www.comptia.org/certifications/security
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