Practice Handling Dirty Pages (19.4.1) - Approximate LRU Implementation
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Handling Dirty Pages

Practice - Handling Dirty Pages

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is a dirty page?

💡 Hint: Think about a page's state after it's been changed.

Question 2 Easy

Describe what happens to reference bits at the end of an interval.

💡 Hint: Consider what tracking is done during the interval.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does a dirty page require before it can be replaced?

No action
Write back to disk
Clear from memory

💡 Hint: Think about what would happen if it were not written.

Question 2

The second chance algorithm is a part of which broader category of algorithms?

True
False

💡 Hint: Consider the principle of giving pages another chance.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Illustrate with an example how a sampled LRU could work differently from a basic LRU in a scenario with several repeated page accesses.

💡 Hint: Consider how the usage over time might differ between the two.

Challenge 2 Hard

Design a situation where Belady’s anomaly occurs and discuss the implications on selecting page replacement strategies.

💡 Hint: Think of frame sizes and access sequences that interact unintentionally.

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Reference links

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