220-1002 Question #412: Real Exam Question with Answer & Explanation

The correct answer is D: Biometric lock and hardware token. Two-factor authentication (2FA) requires two different categories of authentication factors: something you know, something you have, or something you are. A biometric lock uses 'something you are' (fingerprint, retina scan) and a hardware token uses 'something you have' (a physic

Question

A technician is securing a server room by implementing a two-factor authentication solution. Which of the following should the technician implement to provide the BEST security for the server room?

Options

ADoor lock and mantrap
BServer lock and badge reader
CSecurity guard and entry control roster
DBiometric lock and hardware token

Explanation

Two-factor authentication (2FA) requires two different categories of authentication factors: something you know, something you have, or something you are. A biometric lock uses 'something you are' (fingerprint, retina scan) and a hardware token uses 'something you have' (a physical device generating a one-time code). This combination represents true 2FA with two distinct factor categories. A door lock and mantrap (A) are physical barriers, not authentication factors. A server lock and badge reader (B) both fall under 'something you have.' A security guard and entry control roster (C) is a procedural control, not a 2FA technical implementation. Option D is the only choice that combines two genuinely different authentication factor types.

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