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What are the various InputFormats in Hadoop?
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Whether the output of mapper or output of partitioner written on local disk?
What is a Distributed Cache in Hadoop?
What is the default input type in MapReduce?
Explain the differences between a combiner and reducer
What is the InputSplit in map reduce ?
How does Hadoop Classpath plays a vital role in stopping or starting in Hadoop daemons?
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mapper or reducer?
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
Define speculative execution?
What is the need of MapReduce?
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