The unit that provides a four level protection mechanism, for system’s code and data against application program is
(a) central processing unit
(b) segmentation unit
(c) bus interface unit
(d) none of the mentioned
I have been asked this question in an interview for internship.
I need to ask this question from Architecture and Signal Descriptions of 80386 topic in portion 32-bit Processors-80386, 80387 and 80486 of Microprocessor