MapReduce Interview Questions
Un-Answered Questions { MapReduce }
Why MapReduce uses the key-value pair to process the data?
For a Hadoop job, how will you write a custom partitioner?
Define Writable data types in MapReduce?
What main configuration parameters are specified in mapreduce?
Where sorting is done on mapper node or reducer node in MapReduce?
what are the three modes in which Hadoop can be run?
What is mapreduce algorithm?
Is there any point of learning mapreduce, then?
Explain the differences between a combiner and reducer
how can you check whether Namenode is working beside using the jps command?
Where is Mapper output stored?
what happens in textinformat ?
What is a TaskInstance?
What are the various InputFormats in Hadoop?
what is distributed cache in mapreduce framework?
