Practice Frame Allocation Strategies (20.4.1) - Belady's Anomaly - Computer Organisation and Architecture

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6 sample questions

Question 1.
What is Belady's anomaly?
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Consider how pages are organized and accessed in memory.
Question 2.
What does FIFO stand for?
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Think of a line where the first person in is the first person served.
3Question 3.
What does the term 'Belady's anomaly' refer to?
- A method of page replacement
- An increase in page faults with more frames
- A decrease in memory usage
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Consider situations where the assumption fails.
4Question 4.
True or False: The LRU algorithm can exhibit Belady's anomaly.
- True
- False
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Think about how LRU adapts to usage patterns.
Question 5.
Given a sequence of memory accesses and two different page frames, calculate the page faults experienced using both FIFO and LRU methods.
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Keep track of the pages in memory at each access.
Question 6.
Design a potential improvement to enhance frame allocation strategies in a multitasking environment and explain how it would optimize performance.
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Think about balancing workload and resource availability.

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