Practice Belady’s Anomaly (19.7) - Approximate LRU Implementation - Computer Organisation and Architecture - Vol 3
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Belady’s Anomaly

Practice - Belady’s Anomaly

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a page fault?

💡 Hint: Think about accessing an item that’s not there.

Question 2 Easy

What does FIFO stand for?

💡 Hint: Consider how items might move in a queue.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does FIFO stand for?

First-In-Last-Out
First-In-First-Out
First-Out-Last-In

💡 Hint: Think about how lines work at a checkout.

Question 2

True or False: Belady's anomaly states that increasing page frames will always decrease page faults.

True
False

💡 Hint: Challenge common sense; think through called scenarios.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given the reference string [1, 2, 3, 4, 1, 2, 5, 1, 2, 3, 4, 5], calculate page faults using both 3 and 4 frames under FIFO.

💡 Hint: Write out the memory state for each access for clarity.

Challenge 2 Hard

Explain why FIFO can produce Belady's anomaly in terms of data access patterns.

💡 Hint: Consider reference strings that loop back on themselves.

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Reference links

Supplementary resources to enhance your learning experience.