Practice - Liveness (Progress) and Contention in Paxos
Practice Questions
Test your understanding with targeted questions
What does liveness mean in the context of distributed systems?
💡 Hint: Think about what happens if processes stop communicating.
Define contention in distributed systems.
💡 Hint: Consider what happens when multiple processes try to do the same thing.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does liveness ensure in a consensus algorithm?
💡 Hint: Think about the outcome of active communication.
What is livelock?
💡 Hint: Focus on how competing processes behave.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a Paxos system for a supermarket checkout process where multiple cashiers propose values for the total after a customer scans their items. Discuss how to mitigate contention and ensure liveness.
💡 Hint: Think about how you would manage chaos in a busy line.
Analyze a scenario where a sudden power outage causes multiple process failures in a Paxos system. How does quorum size impact the system's ability to recover decisions?
💡 Hint: Relate quorum size to the number of active participants.
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Reference links
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