Which of the following is NOT an authentication method?
A) CAPTCHA
B) DoS
C) Password
D) Physical object

Question

Quizplus · Accepted Answer

DoS stands for Denial of Service, which is a type of attack that aims to make a server or network unavailable to users. It is not an authentication method. The other options are all authentication methods: CAPTCHA is a challenge-response test used to determine whether the user is human, password is a knowledge-based authentication method, and physical object (such as a smart card or USB token) is a possession-based authentication method.

Which of the Following Is NOT an Authentication Method