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CCD-333 · Question #26
CCD-333 Question #26: Real Exam Question with Answer & Explanation
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Question
What happens in a MapReduce job when you set the number of reducers to one?
Options
- AA single reducer gathers and processes all the output from all the mappers. The output is
- BA single reducer gathers and processes all the output from all the mappers. The output is
- CSetting the number of reducers to one creates a processing bottleneck, and since the number
- DSetting the number of reducers to one is invalid, and an exception is thrown.
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