What is MapReduce? What are the syntax you use to run a MapReduce program?
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What do sorting and shuffling do?
How to set mappers and reducers for MapReduce jobs?
List out Hadoop's three configuration files?
What platform and Java version is required to run Hadoop?
What is SequenceFileInputFormat in Hadoop MapReduce?
What is Reducer in MapReduce?
What are advantages of Spark over MapReduce?
What is the difference between Job and Task in MapReduce?
Why comparison of types is important for MapReduce?
How do reducers communicate with each other?
Explain job scheduling through JobTracker
What combiners is and when you should use a combiner in a MapReduce Job?
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