Practice - Approximate LRU Implementation
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Practice Questions
Test your understanding with targeted questions
What is a reference bit?
💡 Hint: Think about how a book's bookmark might signify usage.
What does FIFO stand for?
💡 Hint: Remember that this describes which page gets replaced first!
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary function of a reference bit?
💡 Hint: Think about what being 'accessed' means in context.
True or False: The clock algorithm directly replaces pages with reference bits of 1.
💡 Hint: Recall the purpose of checking reference bits.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Consider a scenario with 5 pages and a page frame of 3. How would the pages be replaced using an approximate LRU approach given the access sequence: A, B, C, A, D, B, E, A, B, C, D, E?
💡 Hint: Map the access sequence while noting reference bits.
A system has two dirty pages and needs to replace one. If the pages are Page X (dirty) and Page Y (clean) with reference bits both set to 0, which page should be replaced and why?
💡 Hint: Consider the overhead of managing dirty pages.
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Reference links
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