Answer / Kishalaya Kumar

MapReduce is a programming model and an associated implementation for processing large data sets. It provides a way to process, manage, and analyze big data in parallel across multiple nodes using the Map and Reduce functions.

List the network requirements for using Hadoop ?

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What counter in Hadoop MapReduce?

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What is partitioning in MapReduce?

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Is it important for Hadoop MapReduce jobs to be written in Java?

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Explain task granularity

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How does MapReduce framework view its input internally?

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Explain what does the conf.setMapper Class do in MapReduce?

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Explain how do ‘map’ and ‘reduce’ work?

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What is the difference between Job and Task in MapReduce?

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What is SequenceFileInputFormat in Hadoop MapReduce?

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What does a 'MapReduce Partitioner' do?

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Where the mapper's intermediate data will be stored?

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