ISC Exam Questions

Which of the following security models dictates that subjects can only access objects through applic

Which of the following security models dictates that subjects can only access objects through
applications?

A.
Biba-Clark model

B.
Bell-LaPadula

C.
Clark-Wilson

D.
Biba model

Explanation:
The Clark-Wilson security model dictates that subjects can only access objects through applications.
Answer option D is incorrect. The Biba model does not let subjects write to objects at a higher
integrity level.
Answer option B is incorrect. The Bell-LaPadula model has a simple security rule, which means a
subject cannot read data from a higher level.
Answer option A is incorrect. There is no such model as Biba-Clark model.
“http://en.wikipedia.org/wiki/Clark-Wilson_model”