What is the relationship between Job and Task in Hadoop?
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Explain what is distributed cache in mapreduce framework?
Explain how do ‘map’ and ‘reduce’ work?
What are the various InputFormats in Hadoop?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
how JobTracker schedules a task ?
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
Why comparison of types is important for MapReduce?
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
Clarify what is shuffling in map reduce?
What is shuffleing in mapreduce?
What is the difference between an RDBMS and Hadoop?
What is the fundamental difference between a MapReduce InputSplit and HDFS block?
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