Answer / Durgesh Kumar Upadhyay

"The conf class in Hadoop is a configuration object that manages all configuration properties required for MapReduce jobs. It provides methods to set and retrieve property values, as well as access built-in configuration properties."

what is NameNode in Hadoop?

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What are the the issues associated with the map and reduce slots based mechanism in mapReduce?

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How much space will the split occupy in Mapreduce?

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Why Mapper runs in heavy weight process and not in a thread in MapReduce?

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How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?

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Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?

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Explain about the partitioning, shuffle and sort phase

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What are combiners? When should I use a combiner in my MapReduce Job?

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What is the input type/format in MapReduce by default?

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What is Counter in MapReduce?

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What are the main configuration parameters in a MapReduce program?

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What is Shuffling and Sorting in a MapReduce?

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