Approach of page replacement
Explain the basic approach of page replacement?
Expert
If no free frame is available, find out the one which is not presently being used and free that particular space. An unwanted frame can be easily freed by writing its contents into the swap space, and altering the page table in order to signify that the page is no longer available within the memory. Now freed frame can also be used in order to hold page for which the process faulted.
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