Which option is NOT part of Two-Factor Authentication as defined?

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Multiple Choice

Which option is NOT part of Two-Factor Authentication as defined?

Explanation:
Two-factor authentication relies on two or more distinct credential categories to verify identity: something you know, something you have, and something you are. This means you might use a password (something you know) plus a code from a hardware token or a mobile app (something you have), or you might scan a fingerprint (something you are). The option that doesn’t fit is something you eat—there’s no recognized authentication factor based on eating, so it isn’t part of two-factor authentication. The other three options correspond to the standard factors used in MFA: knowledge, possession, and biometrics.

Two-factor authentication relies on two or more distinct credential categories to verify identity: something you know, something you have, and something you are. This means you might use a password (something you know) plus a code from a hardware token or a mobile app (something you have), or you might scan a fingerprint (something you are). The option that doesn’t fit is something you eat—there’s no recognized authentication factor based on eating, so it isn’t part of two-factor authentication. The other three options correspond to the standard factors used in MFA: knowledge, possession, and biometrics.

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