Question: Which of the following stands true for Effective memory access time for a process in demand paging?Where <strong><em>pr<sub>1</sub></em></strong><sub> </sub>= probability that a page exists in memory, <strong><em>t<sub>mem</sub></em></strong> = memory access time , <strong><em>t<sub>pfh</sub></em></strong> = time overhead of page fault handling
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MCQ: Which of the following stands true for Effective memory access time for a process in demand paging?Where <strong><em>pr<sub>1</sub></em></strong><sub> </sub>= probability that a page exists in memory, <strong><em>t<sub>mem</sub></em></strong> = memory access time , <strong><em>t<sub>pfh</sub></em></strong> = time overhead of page fault handling
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- 1. Which of the following stands true for Effective memory access time for a process in demand paging? Where <strong><em>pr<sub>1</sub></em></strong><sub> </sub>= probability that a page exists in memory, <strong><em>t<sub>mem</sub></em></strong> = memory access time , <strong><em>t<sub>pfh</sub></em></strong> = time overhead of page fault handling
- 2. Page replacement becomes necessary when <ol> <li>Page faults occur and there are no free page frames in the memory.</li> <li>Page faults occur and there are free page frames in the memory.</li> <li>Page faults would arise if the replaced page is referenced again.</li> <li>It is important to replace a page that is not likely to be referenced again in the immediate future.</li> </ol>
- 3. Which of the following statements stands true for locality of reference in page replacement and handling page faults?
- 4. The computer exploits the law of locality to ensure__________
- 5. How much memory should the virtual memory manager allocates to a process depends on which of the below factors?
- 6. When a process is operating in low memory allocation and has high page fault rate, this process spends a lot its time in the ____________
- 7. A situation where All the processes in the system operate in the region of high page fault rates, the CPU would be engaged in performing page traffic and process switching most of the time and throughput would be poor Called________
- 8. A situation where too few processes exists in memory or all process in memory perform I/O operations frequently is called _______
- 9. Which of the following Statement stands true for the optimal page size of process?It determines______ <ol> <li>the number of bits required to represent the byte number in a page</li> <li>Memory wastage due to internal fragmentation</li> <li>Size of page table for a process</li> <li>Page Fault rates when a fixed amount of memory is allocated to a process</li> </ol>
- 10. Consider a process <strong><em>P<sub>i</sub></em></strong> of size <strong><em>z</em></strong> A page size of <strong><em>s</em></strong> bytes implies that the process has an <strong><em>n</em></strong> pages, where ______
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