Practice Preference for Clean Pages - 19.4.2 | 19. Approximate LRU Implementation | Computer Organisation and Architecture - Vol 3
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19.4.2 - Preference for Clean Pages

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the main purpose of using reference bits in page replacement algorithms?

💡 Hint: Think about how we can remember which pages are used often.

Question 2

Easy

What does a clean page mean in the context of memory management?

💡 Hint: Consider the difference between a recently edited document and an unused one.

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 mechanism does the Approximate LRU algorithm use to track page usage?

  • Reference Bits
  • Address Cache
  • Page Faults

💡 Hint: Recall what we discussed about how something tracks page access.

Question 2

Does a dirty page need to be written back to disk before being replaced?

  • True
  • False

💡 Hint: Think about whether you've written changes in a document before closing it.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You have 4 physical page frames and a sequence of page accesses: A, B, C, D, A, B, E, F, C, D. Determine the page fault counts for FIFO and LRU strategies.

💡 Hint: Track which pages are in memory and replace based on each algorithm’s rules.

Question 2

Analyze a scenario with mixed usage patterns in memory - a workload with excessive dirty pages. Discuss how this might affect performance based on page replacement strategies.

💡 Hint: Consider how often pages must be written and how it affects overall operations.

Challenge and get performance evaluation