Question

The management of the virtual memory of the system and adequate protection to data or codes in the physical memory is provided by

(a) segmentation unit

(b) paging unit

(c) attribute PLA

(d) all of the mentioned

I had been asked this question in a national level competition.

My enquiry is from Numeric Coprocessor in portion 32-bit Processors-80386, 80387 and 80486 of Microprocessor

Answer 1

The correct option is (d) all of the mentioned

The explanation: The segmentation unit, paging unit, attribute PLA, descriptor registers, translation look aside buffer and limit work together to manage the virtual memory of the system and provide the adequate protection to the codes or data in the physical memory.