The security model with no read-down and no write-up is: a. Multilevel b. Clark-Wilson c. Bell-LaPadula d. Biba A system that hides the activities of high-privilege users from low-privilege users...

The security model with no read-down and no write-up is:

a. Multilevel

b. Clark-Wilson

c. Bell-LaPadula

d. Biba

A system that hides the activities of high-privilege users from low-privilege users employs the model known as:

a. Non-interference

b. Compartmented

c. Access matrix

d. Biba