What are the modes in which Apache Hadoop run?


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More Apache Hadoop Interview Questions

What are the characteristics of hadoop framework?

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Mention what are the data components used by Hadoop?

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What other technologies have you used in hadoop sta ck?

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Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?

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What is NoSQL?

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Can we have multiple entries in the master files?

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What is HDFS - Hadoop Distributed File System?

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On What concept the Hadoop framework works?

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What is HDFS ? How it is different from traditional file systems?

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What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?

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What is the main purpose of HDFS fsck command?

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Explain the difference between NameNode

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