The security kernel is found at what protection ring level A

The security kernel is found at what protection ring level?

A. Ring 0

B. Ring 1

C. Ring 2

D. Ring 4

Solution

A. Ring 0 is the most trusted ring. The security kernel resides at ring 0, and protection rings support the security of the system. Answers B, C, and D are incorrect because the security kernel is not located at the respective rings.