Write a Mapreduce Program for Character Count ?
What is Data Locality in Hadoop?
What is a scarce system resource?
Illustrate a simple example of the working of MapReduce.
How to sort intermediate output based on values in MapReduce?
When should you use a reducer?
How can we control particular key should go in a specific reducer?
Define speculative execution?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
What are the primary phases of a Reducer?
What happens if the quantity of the reducer is 0 in mapreduce?
what is a sequence file in Hadoop?
What do you mean by shuffling and sorting in MapReduce?