A Chief Information Security Officer (CISO) wants to implement two-factor authentication within
the company. Which of the following would fulfill the CISO’s requirements?

A.
Username and password
B.
Retina scan and fingerprint scan
C.
USB token and PIN
D.
Proximity badge and token
C. USB Token and PIN
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Thanks you knob it says that is the answer.
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Why not D.?
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Multi-factor authentication: Something you have, Something you know, Something you have. To be multi-factor you need at least two of the above three. Answer D is single-factor; Something you have.
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