Which of the following authentication methods is based on physical appearance of a user?

A.
Key fob

B.
Biometrics

C.
ID/password combination

D.
Smart card

Explanation:
Biometrics is a method of authentication that uses physical characteristics, such as
fingerprints, scars, retinal patterns, and other forms of
biophysical qualities to identify a user. Nowadays, the usage of biometric devices such as hand
scanners and retinal scanners is becoming
more common in the business environment.
Answer option A is incorrect. Key fobs are security devices used by telecommuters to provide one
part of a three way match for a user to log
on to a secured network.