What do you mean by inputformat?
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Explain what does the conf.setMapper Class do in MapReduce?
Name job control options specified by mapreduce.
what is NameNode in Hadoop?
What is an input reader in reference to mapreduce?
Differentiate Reducer and Combiner in Hadoop MapReduce?
Why is output file name in Hadoop MapReduce part-r-00000?
What is a map side join?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
Why comparison of types is important for MapReduce?
What is the Reducer used for?
What is a TaskInstance?
What is a partitioner and how the user can control which key will go to which reducer?
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