Practice Calculating Page Faults (19.6.2) - Approximate LRU Implementation
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Calculating Page Faults

Practice - Calculating Page Faults

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What happens during a page fault?

💡 Hint: Think about the actions taken by the operating system.

Question 2 Easy

Define a reference bit.

💡 Hint: What does this bit help determine?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What algorithm uses reference bits to track page access?

FIFO
Approximate LRU
Optimal

💡 Hint: Remember the algorithm specifically aimed at reducing hardware cost.

Question 2

True or False: The Clock Algorithm allows for pages to have a second chance if their reference bit is set to 1.

True
False

💡 Hint: Think about how it manages page referencing.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a series of memory access sequences, demonstrate how the Clock Algorithm would resolve page faults with 3 frames. Show each step of the selection process.

💡 Hint: Start from the pointer's last position and iterate around the structure.

Challenge 2 Hard

Simulate a scenario with both the Sampled LRU and Approximate LRU algorithms. Use an access sequence and compare the number of page faults for each method.

💡 Hint: Remember to factor in the tracking nuances of each algorithm.

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