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4 cards from this section. Quick, good the night before a test.
What does FIFO stand for in memory management?
Think of the ordering of items in a queue.
Which page replacement policy follows the principle of replacing the least recently accessed page?
Consider how past access patterns affect future needs.
Which replacement policy is likely to lead to Belady's anomaly?
Consider which policy is based solely on age.
True or False: Optimal Replacement is a practical algorithm usable in everyday memory management.
Think about the feasibility of predicting future usage.
Given the sequence of page requests: 1, 2, 3, 1, 4, 2, 1, analyze how FIFO, LRU, and Optimal Replacement would handle this with 3 frames.
Track which pages would remain in memory after each request.
Critique a system implementing LRU using stack versus timestamping. Which system yields greater efficiency and why?
Discuss the use-case scenarios for both systems.
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