Practice Replacement Page Selection (19.1.3) - Approximate LRU Implementation
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Replacement Page Selection

Practice - Replacement Page Selection

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the reference bit indicate in page tables?

💡 Hint: Consider what it means for memory access.

Question 2 Easy

What happens to the reference bits at the start of each interval in the reference bit method?

💡 Hint: Think about how pages are tracked over time.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the reference bit strategy do every fixed interval?

Reset reference bits to 1
Reset reference bits to 0
Record the bits

💡 Hint: Think about the refresh process for already used pages.

Question 2

True or False: The Clock Algorithm always chooses a clean page for replacement.

True
False

💡 Hint: Consider the order of checking reference and dirty bits.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a sequence of page accesses and a finite number of frames, identify how many page faults would occur under LRU and FIFO page replacement strategies.

💡 Hint: Track frames after each access and note when faults occur.

Challenge 2 Hard

Analyze a scenario where Belady's anomaly may appear. Provide page access sequences that demonstrate the behavior.

💡 Hint: Examine historical examples of page replacement patterns.

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