Practice Lru (least Recently Used) (6.2.3) - Memory Management Strategies II - Virtual Memory
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LRU (Least Recently Used)

Practice - LRU (Least Recently Used)

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does LRU stand for?

💡 Hint: Think about what the acronym LRU represents.

Question 2 Easy

What is the main goal of LRU?

💡 Hint: Remember why we want to replace certain pages.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does LRU stand for?

Least Recently Utilized
Least Recently Used
Last Recently Used

💡 Hint: Think about what 'LRU' emphasizes regarding page usage.

Question 2

True or False: LRU can sometimes perform worse than FIFO.

True
False

💡 Hint: Consider when older pages could be more valuable than recently used ones.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a memory system with 4 frames and the reference string [2, 3, 4, 2, 1, 3, 4, 2], identify how many page faults occur with LRU. Illustrate your answer step by step.

💡 Hint: Track the pages in memory as you make accesses from the string.

Challenge 2 Hard

Analyze the difference in effectiveness between LRU and FIFO using a reference string and explain under which conditions each might perform better.

💡 Hint: Consider access patterns that regress or repeat over time.

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Reference links

Supplementary resources to enhance your learning experience.