1.

The number of reduces for the job is set by the user via _________(a) JobConf.setNumTasks(int)(b) JobConf.setNumReduceTasks(int)(c) JobConf.setNumMapTasks(int)(d) All of the mentioned

Answer» Correct choice is (b) JobConf.setNumReduceTasks(int)

To elaborate: Reducer has 3 primary phases: shuffle, sort and reduce.


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