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
I got this question during an online interview.
This is a very interesting question from Mapreduce Development in division Developing a MapReduce Application of Hadoop