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| 1. |
Consider a process executing on an operating system that uses demand paging. The average time for a memory access in the system is M units if the corresponding memory page is available in memory, and D units if the memory access causes a page fault. It has been experimental measured that the average time taken for a memory access in the process is X units.Which one of the following is the correct expression for the page fault rate experienced by the process?(A) (D – M) / (X – M)(B) (X – M) / (D – M)(C) (D – X) / (D – M)(D) (X – M) / (D – X) |
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