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GATE 2023 Subject Name Evaluation Quiz 7

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Question 1

Which one of the following is not true about the threads?

Question 2

A counting semaphore S is initialized to 10. Then, 6 P operations and 4 V operations are performed on S. What is the final value of S?

Question 3

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

Question 4

The overlay tree for a program is as shown

What will be the size(in KB) of the partition (in physical memory) required to load (and run) this program?

Question 5

Consider a paging hardware with a TLB. Assume that the entire page table and all the pages are in the physical memory. It takes 10 milliseconds to search the TLB and 80 milliseconds to access the physical memory. If the TLB hit ratio is 0.6, the effective memory access time (in milliseconds) is _________

Question 6

A paging scheme uses a Translation Lookaside buffer (TLB). The effective memory access takes 160 ns and a main memory access takes 100 ns. What is the TLB access time (in ns) if the TLB hit ratio is 60% and there is no page fault?

Question 7

A system is having 10 user processes each requiring 3 units of resource R. The maximum number of units of R such that deadlock will occur?

Question 8

Which of the following is/are true?
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Sep 30GATE & PSU CS