Practice Complexity (2.4.2) - Consensus, Paxos and Recovery in Clouds - Distributed and Cloud Systems Micro Specialization
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Complexity

Practice - Complexity

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Practice Questions

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Question 1 Easy

What is consensus in distributed systems?

💡 Hint: Think about why unity is crucial in a distributed setting.

Question 2 Easy

Name two types of process failures discussed.

💡 Hint: Consider the behaviors of processes when they fail.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary purpose of the Paxos algorithm?

To achieve consensus in synchronous systems
To handle crash failures in asynchronous systems
To replicate data across servers

💡 Hint: Focus on the environment where it is effective.

Question 2

True or False: Byzantine failures are characterized by processes that stop functioning entirely.

True
False

💡 Hint: Think about the complexity of Byzantine failures.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a scenario where asynchronous communication leads to a failure in achieving consensus. Illustrate how Paxos could help resolve this.

💡 Hint: Focus on how Paxos manages the proposal process to validate account states.

Challenge 2 Hard

Evaluate the implications of the FLP theorem for systems that require strong reliability in distributed environments. What solutions might mitigate these limitations?

💡 Hint: Consider how combining synchronous assumptions with failure detection can create practical solutions.

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