Explain how do ‘map’ and ‘reduce’ work?
how Hadoop is different from other data processing tools?
What do you know about nlineinputformat?
What are the advantages of using mapreduce with hadoop?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
What is InputFormat in Hadoop MapReduce?
What is the sequence of execution of map, reduce, recordreader, split, combiner, partitioner?
Mention what is the next step after mapper or maptask?
What are the disservices of utilizing Apache Spark over Hadoop MapReduce?
What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?
What is MapReduce? What are the syntax you use to run a MapReduce program?
Explain what is distributed cache in mapreduce framework?
What do you mean by inputformat?