A security technician has been asked to recommend an authentication mechanism that will allow users to
authenticate using a password that will only be valid for a predefined time interval. Which of the following should
the security technician recommend?

A.
CHAP

B.
TOTP

C.
HOTP

D.
PAP

Explanation:
Time-based one-time password (TOTP) tokens are devices or applications that generate passwords at fixed
time intervals. Therefore, the password will only be valid for a predefined time interval.