What information security model formalizes the US Department of Defense multi-level security
policy?

A.
Stark-Wilson

B.
Clark-Wilson

C.
Bell-LaPadula

D.
Biba

Explanation:

The correct answer is Bell-LaPadula. The Bell-LaPadula model addresses the confidentiality of
classified material. Answers . Clark-Wilson and Biba are integrity models, and answer Stark-Wils is a
distracter.