Consider a paging system with the page table stored in memory. a. If a memory reference takes 400 nanoseconds, how long does a paged memory reference take? b. If we add TLBs, and 95 percent of all page-table references are found in the TLBs, what is the effective memory reference time? (Assume that finding a page-table entry in the TLBs takes zero time, if the entry is there.)

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