Is hadoop a memory?


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More Apache Hadoop Interview Questions

What is a 'block' in HDFS?

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What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?

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What is the purpose of DataNode block scanner?

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What are watches?

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What is the jobtracker?

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What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?

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On what basis data will be stored on a rack?

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What is Rack awareness?

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What are the basic available commands in Hadoop sqoop ?

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How many instances of tasktracker run on a hadoop cluster?

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What is HDFS Federation?

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Explain the difference between gen1 and gen2 hadoop with regards to the namenode?

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