Explanation:Mapper implementations are passed the JobConf for the job via the JobConfigurable.configure(JobConf) method and override it to initialize themselves. 4. Users can control which keys (and hence records) go to which Reducer by implementing a custom :
A. Partitioner
B. OutputSplit
C. Reporter
D. All of the mentioned
Answer:A
Explanation:Mapper implementations are passed the JobConf for the job via the JobConfigurable.configure(JobConf) method and override it to initialize themselves. 4. Users can control which keys (and hence records) go to which Reducer by implementing a custom :
A. Partitioner B. OutputSplit C. Reporter D. All of the mentioned
Explanation:Users can control the grouping by specifying a Comparator via JobConf.setOutputKeyComparatorClass(Class). 5. Point out the wrong statement :