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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is heartbeating in Hadoop?
💡 Hint: Think of it as a way to keep tabs on server health.
Question 2
Easy
What happens if a NodeManager misses a heartbeat?
💡 Hint: Consider the implication for ongoing tasks.
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 does heartbeating refer to in the context of Hadoop?
- Periodic messages for task scheduling
- Heartbeat detection for NodeManagers
- Failure detection for TaskTrackers
💡 Hint: Think about how the system monitors its components.
Question 2
True or False: If a NodeManager fails to send a heartbeat, the ResourceManager will not detect any issues.
- True
- False
💡 Hint: Consider the role of communication in failure detection.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a failure detection system in a NodeManager for a hypothetical Hadoop framework. Discuss how heartbeating can optimize this system.
💡 Hint: Consider how heartbeating can impact both speed and accuracy in identifying failures.
Question 2
Evaluate the fault tolerance of a Hadoop implementation that relies solely on heartbeating without re-execution of tasks. How could this system fail?
💡 Hint: Think about scenarios where a task fails but the NodeManager still sends heartbeats.
Challenge and get performance evaluation