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Community QuestionSeen on 34 CBTsRe-created in 27 study sets this year

Which of the following is an example of two-factor authentication?

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Answer

Your password and a code you receive via text message

25 of 34 indexed CBT versions give this answer·Answer index rebuilt Aug 17, 2026

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“An authentication system that requires more than one distinct type of authentication factor for successful authentication. Something you know (e.g., PIN, password), something you have (e.g., cryptographic identification device, token), or something you are (e.g., biometric).”

— NIST SP 800-63-4 — Multi-Factor Authentication (CSRC Glossary) ↗

The indexed versions don't agree on this one

This question appears on 34 CBT versions we've indexed, and they don't all give the same answer. Exam editions change and answer keys get re-cut, so more than one of these was correct on the test it came from. Here is each of them, and how many versions give it.

25 of 34 versionsmost versions

Your password and a code you receive via text message

Army Cyber Awareness Challenge 2023 · Compressed Url Cyber Awareness · Cyber Awareness Cbt Answers · +9 more

8 of 34 versions

A Common Access Card and Personal Identification Number.

Digitally Signed Emails Are More Secure Cyber Awareness · Protected Health Information Cyber Awareness · Protecting Classified Data Cyber Awareness · +5 more

1 of 34 version

Password and Fingerprint

Cyber Awareness Challenge 2026

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