Compare RDBMS with Hadoop MapReduce.
How to specify more than one directory as input to the MapReduce Job?
How to set which framework would be used to run mapreduce program?
Is it mandatory to set input and output type/format in MapReduce?
What is the data storage component used by Hadoop?
Explain about the partitioning, shuffle and sort phase
List the network requirements for using Hadoop ?
What is a MapReduce Combiner?
What is Counter in MapReduce?
Is YARN a replacement of Hadoop MapReduce?
what is a sequence file in Hadoop?
What is a TaskInstance?
how to proceed to write your first mapreducer program?