Question: Assume we have a demand-paged memory. The page table is held in registers. It takes 2 milliseconds to service a page fault if an empty

Assume we have a demand-paged memory. The page table is held in registers. It takes 2 milliseconds to service a page fault if an empty page is available or the replaced page is not modified, and 12 milliseconds if the replaced page is modified. Memory access time is 75 nanoseconds. Assume that the page to be replaced is modified 77 percent of the time. What is the maximum acceptable page-fault rate for an effective access time of no more than 150 nanoseconds?

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