ion $23(3$ points$)$

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Question $24(3$ points$)$

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Explain what actions are taken by the memory management unit and the operating system to handle a page fault on a computer that implements virtual memory and has been running for some time. In your answer, address what effect these have on performance.

Question $25(3$ points$)$

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Explain why access to a file that's stored contiguously on magnetic disk is faster than access to a file not stored contiguously. $($Hint: What disk operation is less frequent when the file is contiguous?$)$