LRU page replacement works by replacing the page that has not been used for the longest time. For the reference string 4, 2, 4, 1, 5, 2, 3, 4 with 3 frames, the page faults occur as follows: • Insert 4 (fault), Insert 2 (fault), Access 4 (hit), Insert 1 (fault), Insert 5 (fault, replace 4), Access 2 (hit), Insert 3 (fault, replace 1), Access 4 (fault, replace 5). Thus, there are 6 page faults in total. LRU minimizes page faults compared to other algorithms by always keeping the most recently used pages in memory. Why other options are wrong: A) 3 faults would require the reference string to contain repeated pages with no replacements. B) 5 faults underestimate the replacements required after the first few frames fill up. D) 7 faults occur in algorithms with more aggressive replacements like FIFO. E) 8 faults assume no page hits at all, which is incorrect since some pages are reused before replacement.
Which one of the following registers contains the address of the next location in the memory to be accessed?
From which country were the highest amount of FDI inflows received by India during the financial year 2020-21?
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ISWM stands for _________.
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