An example of two-factor authentication is:

A.
An ID and a PIN.

B.
A PIN and an ATM card.

C.
A finger print.

D.
A password and an ID.

Explanation:
The correct answer is “APIN and an ATM card”. These items are something you know and
something you have. Answer “A password and an ID” is incorrect because essentially, only one
factor is being used: something you know (password.).
Answer “An ID and a PIN” is incorrect for the same reason. Answer “A finger print” is incorrect
because only one biometric factor is being used.