Practice Page Replacement Based On Reference Bytes (19.2.3) - Approximate LRU Implementation
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Page Replacement Based on Reference Bytes

Practice - Page Replacement Based on Reference Bytes

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does a reference bit indicate?

💡 Hint: Think about what helps systems decide on page replacements.

Question 2 Easy

What is a dirty page?

💡 Hint: Consider what happens to data in memory.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary function of a reference bit in page replacement?

Indicates page has been accessed
Stores data
Marks the end of a program

💡 Hint: It's a flag that reflects page activity.

Question 2

True or False: Increasing page frames always leads to fewer page faults.

True
False

💡 Hint: Consider counterexamples in memory management.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a memory with 4 frames, simulate page replacement using FIFO for the following page reference string: 7, 0, 1, 2, 0, 3, 0, 4. Count the page faults.

💡 Hint: Track the frames filled step by step as the numbers come.

Challenge 2 Hard

Discuss how implementing the clock algorithm could change performance in a real-world scenario with frequent page accesses.

💡 Hint: Consider the overall overhead reduction in checking pages.

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