What is MapReduce? What are the syntax you use to run a MapReduce program?
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What is the difference between Reducer and Combiner in Hadoop MapReduce?
What are the four basic parameters of a reducer?
What is shuffleing in mapreduce?
What are the advantages of using mapreduce with hadoop?
What is the fundamental difference between a MapReduce InputSplit and HDFS block?
Is it possible to search for files using wildcards?
Define speculative execution?
Write a short note on the disadvantages of mapreduce
What are the various configuration parameters required to run a mapreduce job?
How many Mappers run for a MapReduce job?
What is streaming?
what is the Hadoop MapReduce APIs contract for a key and value class?
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