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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of the reference bit in the approximate LRU algorithm?
💡 Hint: Think about what determines whether a page should be replaced.
Question 2
Easy
Define Belady's anomaly in your own words.
💡 Hint: Consider the implications of increasing memory.
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 does a reference bit signify in page replacement algorithms?
- It shows if a page is dirty
- It indicates if a page has been recently used
- It measures the page size
💡 Hint: Think about the page’s history.
Question 2
True or False: The sampled LRU uses a single bit for page replacement decisions.
- True
- False
💡 Hint: Consider what extra information is stored.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a reference string of page accesses along with the number of frames, simulate the approximate LRU and calculate the number of page faults. Explain the results.
💡 Hint: Keep an organized table of page references and their bits.
Question 2
Discuss the implications of Belady's anomaly in a real-world system. What can designers do to mitigate this problem?
💡 Hint: Think about how knowing future references could improve memory management.
Challenge and get performance evaluation