A coded lock is an example of which general type of access control?

The correct answer is D. What you know. A coded lock requires you to know the correct combination or PIN - knowledge-based authentication falls under "what you know" (option D). Option A ("who you are") refers to biometrics like fingerprints or retinal scans that identify your physical characteristics. Option B…

Data Center Physical Security

Question

A coded lock is an example of which general type of access control?

Options

AWho you are
BWhere you are
CWhat you have
DWhat you know

How the community answered

(23 responses)

A
4% (1)
B
4% (1)
C
13% (3)
D
78% (18)

Explanation

A coded lock requires you to know the correct combination or PIN - knowledge-based authentication falls under "what you know" (option D). Option A ("who you are") refers to biometrics like fingerprints or retinal scans that identify your physical characteristics. Option B ("where you are") describes location-based controls like geofencing or IP restrictions. Option C ("what you have") covers physical tokens - a key, smart card, or hardware authenticator - which a coded lock does not require; knowing the code is enough even without possessing any object.

Memory tip: Think of the three "something" factors - something you know (passwords, PINs, combinations), something you have (keys, cards, tokens), something you are (biometrics). A lock that opens with a secret number = secret = knowledge = "what you know."

Topics

#access control#authentication factors#coded lock#physical security

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