Multiple choice technology architecture

Retinal scanning falls into which category of authentication ?

  1. What we know

  2. What we are

  3. What we have

  4. What we use
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Biometric authentication falls into 'what we are' (something inherent to the person) as opposed to 'what we know' (passwords), 'what we have' (tokens/smart cards), or 'what we use' (not a standard authentication category). Retinal patterns are unique biological characteristics intrinsic to each individual.

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