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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the primary role of the Mapper function in MapReduce?
💡 Hint: Think about the MapReduce workflow.
Question 2
Easy
Define what an intermediate key-value pair is.
💡 Hint: Consider it as an output of the Mapper.
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 the output of the Mapper function?
- Intermediate key-value pairs
- Direct output files
- Function status logs
💡 Hint: Consider what data gets passed to the Reducer.
Question 2
True or False: A pure function in MapReduce can have side effects that affect other tasks.
- True
- False
💡 Hint: Think about how tasks communicate.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a dataset of lines of text. Design a Mapper function that counts occurrences of each character in the text, specifying how the output would be structured.
💡 Hint: Remember to think about both the input and expected outputs.
Question 2
How would you modify a standard Mapper function if the input data was very large? What optimizations could you implement?
💡 Hint: Think about how Mappers can break down tasks for efficiency.
Challenge and get performance evaluation