Understanding Knowledge Factors:
Knowledge factors are something the user knows and are commonly used for authentication.
Examples include passwords, PINs, and security questions.
Why Other Options Are Incorrect:
Option A (ID card): This is a possession factor (something you have).
Option C (Security token): A security token is also a possession factor.
Option D (Fingerprint): This is a biometric factor (something you are).
[References:, NIST Authentication Guidelines (SP 800-63), "Multi-Factor Authentication Best Practices" – Gartner, , ]
Submit