Practice - Event Ordering (Logical Clocks)
Practice Questions
Test your understanding with targeted questions
What is the purpose of using logical clocks in distributed systems?
💡 Hint: Consider why global time synchronization is challenging.
What does Lamport's 'happened-before' relation indicate?
💡 Hint: Think about the sequence of actions.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the term 'happened before' imply in distributed systems?
💡 Hint: Think about which events influence others.
True or False: Lamport logical clocks can completely replace the need for synchronized physical clocks.
💡 Hint: Consider the limitations of logical clocks.
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Challenge Problems
Push your limits with advanced challenges
Suppose you have a distributed system where three processes P1, P2, and P3 interact. Describe how you would use Lamport clocks to track event ordering if each process executes an internal event and sends messages in a particular sequence. What would the resulting timestamps look like?
💡 Hint: Remember to increment before sending and adjust upon receiving.
Imagine two events occur in two different processes concurrently, but later, one of them sends a message to the other. If you apply vector clocks, how can you determine the relationship between the two events?
💡 Hint: Draw out a scenario with vector timelines to visualize.
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Reference links
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