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I/O drivers and utilities are typically found at what protected ring level?
A. Ring 1
B. Ring 2
C. Ring 3
D. Ring 0
Solution
B. Rings of protection run from ring 0 to ring 3. Ring 2 is the location of I/O drivers and utilities.
Answers A, C, and D are incorrect because ring 1 contains parts of the OS that do not reside in
the kernel, ring 3 contains applications and programs, and ring 0 is the location of the security
kernel

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