Biometric Authentication Uses a Physical Attribute
Which authentication method requires the user to provide a physical attribute to authenticate successfully?
Community Votes
100% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
The 'something you are' factor is biometric; the question asks specifically for a physical attribute, which maps to biometrics alone.
Biometrics are an inherence factor: something the user physically is. Passwords are knowledge, certificates are possession, and multifactor combines types. Only biometrics require a physical/biological attribute.
Picking multifactor (C): that is a combination of factors, not a single physical-attribute method. Password (B) is knowledge; certificate (D) is possession.
Community Discussion (3 comments)
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Expert Analysis
Why the Answer Is Correct
A is correct. Biometric authentication requires a physical/biological attribute — fingerprint, facial recognition, or iris scan — to verify the user.Why the Other Options Are Wrong
B (password) is a knowledge factor. C (multifactor) is a combination of factors, not a physical attribute by itself. D (certificate) is a possession factor.Community Comment Notes
The vote is A (100). The comment simply confirms biometrics require a physical attribute such as a fingerprint, face, or iris.Official Reference
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