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What are the various InputFormats in Hadoop?
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Mention when to use Map reduce mode?
What is a RecordReader in Hadoop MapReduce?
What are the benefits of Spark over MapReduce?
What combiners are and when you should use a combiner in a mapreduce job?
Can MapReduce program be written in any language other than Java?
Explain the process of spilling in Hadoop MapReduce?
Compare RDBMS with Hadoop MapReduce.
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
Can we submit the mapreduce job from slave node?
What is the need of key-value pair to process the data in MapReduce?
What do sorting and shuffling do?
what is the Hadoop MapReduce APIs contract for a key and value class?
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