Practice Explanation Of Lru (20.2.2) - Belady's Anomaly - Computer Organisation and Architecture - Vol 3
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Explanation of LRU

Practice - Explanation of LRU

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define Belady's anomaly in your own words.

💡 Hint: Think of examples of how faults behave with increased frames.

Question 2 Easy

What does LRU stand for?

💡 Hint: It relates to how memory pages are managed and accessed.

3 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is Belady's anomaly?

When increasing frames decreases page faults
When increasing frames increases page faults
When page faults are irrelevant to frames

💡 Hint: Consider scenarios in which you'd see this phenomenon.

Question 2

True or False: The LRU algorithm can exhibit Belady’s anomaly.

True
False

💡 Hint: Think back on how LRU pages are selected and replaced.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a sequence of page requests and four frames, evaluate the efficiency of both LRU and the Optimal algorithms. What differences do you observe in page faults?

💡 Hint: List your page hits and faults for each frame accordingly.

Challenge 2 Hard

Design and justify a frame allocation scheme for a varied workload environment with example scenarios for each type (fixed, proportional, and priority).

💡 Hint: Consider applications with distinct memory needs.

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