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How do Hadoop MapReduce works?
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What is an identity mapper and identity reducer?
List the network requirements for using Hadoop ?
When is it suggested to use a combiner in a MapReduce job?
What is the role of recordreader in hadoop mapreduce?
Is it legal to set the number of reducer task to zero? Where the output will be stored in this case?
With the help of two examples name the map and reduce function purpose
What do you understand by mapreduce?
How to create a custom key and custom value in MapReduce Job?
What is the difference between map and reduce?
How to set which framework would be used to run mapreduce program?
Whether the output of mapper or output of partitioner written on local disk?
Which are the methods in the mapper interface?
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