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GATE 2020 : Operating System Quiz 8 (App update required to attempt this test)

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Question 1

In which of the following updating techniques coherence exists?

Question 2

Which of the given is not the activity of an operating system in regard to memory management?

Question 3

Consider the three schemes of memory management:

1) Contiguous Memory Allocation

2) Pure Segmentation

3) Pure Paging

Which of the following will lead to external fragmentation and internal fragmentation respectively?

Question 4

Consider a system that has main memory access time is 30ns and page fault service time is 300ns and the page hit ratio 85% then what is the effective main memory access time?

Question 5

A sequential access file has 15 bytes record. Assume that the first record is numbered as 1, than what will be the logical location at which first byte of sixth record will be stored _______

Question 6

Consider a machine with 64 MB physical memory and a 32-bit virtual address space. If the page size is 4KB, what is the approximate size of the page table?
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Apr 8GATE & PSU CS