Practice Replacement Strategy (19.5.2) - Approximate LRU Implementation
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Replacement Strategy

Practice - Replacement Strategy

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the purpose of a reference bit in page replacement strategies?

💡 Hint: Consider how pages are evaluated based on previous usage.

Question 2 Easy

Define Belady's Anomaly.

💡 Hint: Think about the implications of page access patterns.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the reference bit indicate?

Whether a page is clean
Whether a page has been accessed
The age of the page

💡 Hint: Think about page access tracking.

Question 2

True or False: Belady's Anomaly states that increasing the number of page frames will always decrease page faults.

True
False

💡 Hint: Remember the counterintuitive nature of this anomaly.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You are designing a page replacement strategy for a system that frequently accesses a repeated sequence of pages. Describe your approach and reasoning.

💡 Hint: Focus on the patterns of access when making your choice of algorithm.

Challenge 2 Hard

Optional use case: Given a set of access patterns, analyze and determine if Belady's Anomaly could occur.

💡 Hint: Consider specific sequence combinations and their interactions with the physical memory.

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Reference links

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