how Hadoop is different from other data processing tools?
Explain the differences between a combiner and reducer
Is it necessary to write a mapreduce job in java?
Where sorting is done on mapper node or reducer node in MapReduce?
How to configure the number of the Combiner in MapReduce?
What are the key differences between Pig vs MapReduce?
Whether the output of mapper or output of partitioner written on local disk?
How data is spilt in Hadoop?
What is the difference between a MapReduce InputSplit and HDFS block?
What is map/reduce job in hadoop?
Explain what is “map” and what is "reducer" in hadoop?
What do you understand by compute and storage nodes?
What are the four essential parameters of a mapper?