Consider the following (page) referernce string: (Explain how this answer was fo

Question

Consider the following (page) referernce string: (Explain how this answer was found. I don't understand)

2. 2. Consider the following (page) reference string: 1 1 4 1 5 1 4 1 8 1 4 1 7 1 8 2 7 2 4 2 ! If the window size, A, is 10: What is the working set at t=t,? 51,2,4,5,7,83 b. What is the working set size at t=t,?

Explanation / Answer

since the page reference string only contains 6 pages -> 1, 2, 4, 5, 7, 8 and since window size is 10, we can hold all pages in the window so, at t1 all pages in reference are in working set so, working set is {1, 2, 4, 5, 7, 8} and size of working set is 6 since there are 6 pages in the set above

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