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.