Security Fundamentals — Question 44

What are three examples of two-factor authentication? (Choose three.)

Answer options

• A. A fingerprint and a pattern
• B. A password and a smart card
• C. A username and a password
• D. A password and a pin number
• E. A pin number and a debit card

Correct answer: A, B, E

Explanation

The correct answers, A, B, and E, involve two distinct forms of identification: something you have (like a smart card or debit card) and something you are (like a fingerprint) or know (like a PIN). Options C and D only employ one factor, which is knowledge-based (username/password or password/PIN), thus they do not qualify as two-factor authentication.