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Can you explain how do ‘map’ and ‘reduce’ work?


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More Apache Hadoop Interview Questions

Explain the features of fully distributed mode?

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What is safe mode in Hadoop?

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Explain the hadoop configuration files at present?

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What is HDFS - Hadoop Distributed File System?

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What are the modules that constitute the Apache Hadoop 2.0 framework?

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What is Apache Hadoop?

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Explain the features of pseudo mode?

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how to share the metastore within multiple users?

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Explain the use of .mecia class?

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On what basis name node distribute blocks across the data nodes?

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Name some companies that use Hadoop?

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