Operating SystemPU Spring 2024
a) Define page fault. Consider the following page reference strings: 1,3, 4, 5,3. 1.6, 7,3, 1. 3,4, 8. 9, 4, 3, 1, 3, 4, 7. How many page faults would occur for each of the following page…
15- a) Define page fault. Consider the following page reference strings: 1,3, 4, 5,3. 1.6, 7,3, 1. 3,4, 8. 9, 4, 3, 1, 3, 4, 7. How many page faults would occur for each of the following page replacement algorithms assuming 3 pages a frame? In each case calculate fault ratio.
- i) | Second Chance page replacement
- ii) LRU page replacement
- iii) | Optimal page replacement
- b) Define coalescing and compaction. Explain the necessity of inverted — page tables.
OR
What is difference between Paging and Segmentation? What are different page-table structures? Explain anyone.
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