19. Which security principle mandates that only a minimum number of operating system processes should run in supervisory mode? A. Abstraction B. Layering C. Data hiding D. Least privilege 20. Which...

19.
Which security principle mandates that only a minimum number of operating system processes

should run in supervisory mode?

A.
Abstraction

B.
Layering

C.
Data hiding

D.
Least privilege

20.
Which security principle takes the concept of process isolation and implements it using

physical controls?

A.
Hardware segmentation

B.
Data hiding

C.
Layering

D.
Abstraction