Point out the wrong statement :

Question

Options:

A . It is legal to set the number of reduce-tasks to zero if no reduction is desired

B . The outputs of the map-tasks go directly to the FileSystem

C . The Mapreduce framework does not sort the map-outputs before writing them out to the FileSystem

D . None of the mentioned

Answer: Option D

Outputs of the map-tasks go directly to the FileSystem, into the output path set by setOutputPath(Path).

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