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4 cards from this section. Quick, good the night before a test.
What is a page fault?
Think about what happens when you try to access something that is not there.
Define FIFO in the context of page replacement.
What does FIFO stand for?
What happens during a page fault?
What does the system need to do to resolve the fault?
True or False: FIFO algorithm replaces the most recently used page.
Remember the order in which pages are added.
Given the reference string 4, 1, 3, 4, 2, 1, 1, 2, 0, 3 with 3 frames, determine the page fault rate using FIFO.
Draw it out: First fill frames with the first three accesses, then keep replacing the oldest.
Propose an algorithm that combines FIFO and LRU principles for better efficiency.
Consider how you might manage initial placements versus frequent accesses.
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