Practice Approximate LRU Implementation - 19.1 | 19. Approximate LRU Implementation | 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 is a reference bit?

💡 Hint: Think about how a book's bookmark might signify usage.

Question 2

Easy

What does FIFO stand for?

💡 Hint: Remember that this describes which page gets replaced first!

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 is the primary function of a reference bit?

  • It signals page modification
  • It states recent usage
  • It allocates memory

💡 Hint: Think about what being 'accessed' means in context.

Question 2

True or False: The clock algorithm directly replaces pages with reference bits of 1.

  • True
  • False

💡 Hint: Recall the purpose of checking reference bits.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Consider a scenario with 5 pages and a page frame of 3. How would the pages be replaced using an approximate LRU approach given the access sequence: A, B, C, A, D, B, E, A, B, C, D, E?

💡 Hint: Map the access sequence while noting reference bits.

Question 2

A system has two dirty pages and needs to replace one. If the pages are Page X (dirty) and Page Y (clean) with reference bits both set to 0, which page should be replaced and why?

💡 Hint: Consider the overhead of managing dirty pages.

Challenge and get performance evaluation