Discussion :: Hadoop MCQs
- Point out the wrong statement :
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A.
The Mapper outputs are sorted and then partitioned per Reducer
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B.
The total number of partitions is the same as the number of reduce tasks for the job
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C.
The intermediate, sorted outputs are always stored in a simple (key-len, key, value-len, value) format
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D.
None of the mentioned
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Answer : Option D
Explanation :
All intermediate values associated with a given output key are subsequently grouped by the framework, and passed to the Reducer(s) to determine the final output.
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