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GATE 2023 Operating System Quiz 37

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Question 1

Consider the following memories
1. Main memory
2. Hard disk
3. Level-2 cache
Which of the above memories can be used to store the page tables?

Question 2

A computer is using paging memory management ,logical address space has size 64MB. Table entry has size of 4 bytes. What is the page size ?

Question 3

Consider a system which has logical address 27 bits and physical address is 21 bits and page size = 4kw then calculate the number of pages and the number of frames?

Question 4

Match the following flag bits used in the concept of virtual memory management system with the purpose for which they used.

Which of the following is correct?

Question 5

Which of the following statement is /are true?

Statement 1 : External fragmentation is NOT possible in paging.

Statement 2 : Pages of any program are fixed-sized and can be located anywhere in the memory.

Question 6

Consider a computer system having page size 4 KB, number of pages 8 K and number of frames 512. Then page table size will be?
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Oct 3GATE & PSU CS