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Under what circumstances do page faults occur? Describe the actions taken by the operating system when a page fault occurs?
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Answer Posted / Viplov Vishnoi
Page Faults occur when a process requests a page that is not in main memory (RAM). When a page fault occurs, the Operating System's Memory Management component takes action to swap the required page from secondary storage (Hard Disk) into main memory. This swapping process may involve replacing an already resident page, if the system is low on memory.
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