Two-factor authentication uses:

A Password only

B Two forms of verification

C Biometrics only

D Username only

✓ Correct Answer: Option B

2FA requires two types of identification.

💡 Why is B) the correct answer?

The correct answer to the question "Two-factor authentication uses:" is Option B: Two forms of verification.

The other options — A) Password only, C) Biometrics only, D) Username only — are incorrect for this Computer Science question. As explained above: 2FA requires two types of identification.

📚 About This Computer Science Practice Question

This 2-level Computer Science question from the Computer Security & Viruses topic is part of One Paper Preparation's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free Computer Science practice test or use flashcards for spaced repetition review.

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Two-factor authentication uses:

✓ Correct Answer: Option B

📚 About This Computer Science Practice Question

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