Practice Least Recently Used (LRU) - 18.2.8.3 | 18. Page Replacement Algorithms | Computer Organisation and Architecture - Vol 3
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does LRU stand for?

💡 Hint: Think about which pages would be replaced first.

Question 2

Easy

Is LRU considered optimal under certain conditions?

💡 Hint: Consider when past access patterns can no longer predict future needs.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does LRU stand for?

  • Least Read Used
  • Least Recently Used
  • Last Recently Utilized

💡 Hint: Think about the timing of page uses.

Question 2

True or False: LRU may perform poorly when it faces unpredictable access patterns.

  • True
  • False

💡 Hint: Consider situations where what's next may not reflect what's happened.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Imagine a scenario where a computer system has limited RAM. Given the access pattern for pages A, B, C, A, B, D, A, C, can you simulate the state of the memory frame using LRU after each page is accessed?

💡 Hint: Track the history of page accesses carefully to see how replacements occur.

Question 2

Discuss a situation in which implementing a hardware clock for timestamps could lead to inefficiencies in LRU. What would be a potential improvement?

💡 Hint: Think about how too much detail can lead to delays when speed is crucial.

Challenge and get performance evaluation