Explain multi-factor authentication


Question 1. Explain multi-factor (multiple means of) authentication of a user and give two examples for each authentication factor.

Question 2. Describe the fundamental principles in both the Bell-LaPadula and Biba security models. For each, explain what sort of security the model is intended to provide, the two key properties of the model, and then explain in your own words why each of the properties makes sense from a security standpoint.

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Basic Computer Science: Explain multi-factor authentication
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