Which of the following authentication methods provides the highest level of security for remote access to a corporate network?

Answer options:

Username and a complex 16-character password.

Username, password, and a cognitive security question.

Username, password, and a hardware token generating a one-time code.

MAC address filtering.

How to approach this question

Look for Multi-Factor Authentication (MFA). Factors: Something you know, have, are. Two different factors > Strong password.

Full Answer

C.Username, password, and a hardware token generating a one-time code.✓ Correct

MFA combines two or more independent credentials: what you know (password), what you have (token), and what you are (biometric). This is significantly stronger than any single factor, regardless of complexity.

Common mistakes

Thinking a security question is a second factor. It is just another 'something you know'.

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