Practice Maintaining Clean Pages in Free Frame Pool - 20.3.3 | 20. Belady's Anomaly | Computer Organisation and Architecture - Vol 3
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20.3.3 - Maintaining Clean Pages in Free Frame Pool

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define Belady's anomaly.

💡 Hint: Think about scenarios where more options can still lead to issues.

Question 2

Easy

What does FIFO stand for?

💡 Hint: It's a way of prioritizing which items leave first.

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 is Belady's anomaly?

  • A: It refers to page faults decreasing with more frames
  • B: It is the concept that more frames can sometimes increase page faults
  • C: It describes memory fragmentation

💡 Hint: Think back to scenarios where additional resources led to efficiency losses.

Question 2

Does the LRU algorithm experience Belady's anomaly?

  • True
  • False

💡 Hint: Which algorithms are known for their efficiency with recent usage?

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A system is currently supporting 5 processes with varying memory demands, each needing 10, 20, fewer than 8, 30, and 12 frames respectively. Based on proportional allocation, how would you divide a total of 80 available frames among these processes?

💡 Hint: Break down each need to determine a fair ratio.

Question 2

Given a series of page accesses [A, B, C, A, D, B, C, E], demonstrate how both FIFO and LRU algorithms results in different outcomes based on a frame limit of 3.

💡 Hint: Map each function to see which pages are retained under both methods.

Challenge and get performance evaluation