Practice Optimal Algorithm And Lru (20.2) - Belady's Anomaly - Computer Organisation and Architecture - Vol 3
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Optimal Algorithm and LRU

Practice - Optimal Algorithm and LRU

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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 files not loaded in the system.

Question 2 Easy

Define Belady’s anomaly.

💡 Hint: Consider the efficiency of memory management.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does Belady’s anomaly refer to?

More frames can lead to fewer faults
More frames can lead to more faults
It has no impact on page faults

💡 Hint: It's a unique situation in memory management.

Question 2

True or False: The Optimal algorithm can predict future page accesses.

True
False

💡 Hint: Consider the advantages it claims.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Using the reference string 7, 3, 0, 1, 2, 0, 3, 0, 4, 2, with 4 frames, calculate the number of page faults using both Optimal and LRU algorithms.

💡 Hint: Track which pages are in memory after each access.

Challenge 2 Hard

Create a scenario where an increase in frame number would lead to Belady's Anomaly. Describe it using a reference string.

💡 Hint: Think of common access patterns and how they interact with frame limits.

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Reference links

Supplementary resources to enhance your learning experience.