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What is data cleansing?


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More Hadoop General Interview Questions

What is job tracker in Hadoop?

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Which database is used in hadoop?

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What is the difference between namenode and datanode in hadoop?

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What is the difference between an inputsplit and a block?

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Is hadoop still in demand?

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What is CAP Theorem? What aspects does Hadoop support from this theorem?

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What is the job tracker role in hadoop?

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what if job tracker machine is down?

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What happen if a datanode loses network connection for a few minutes?

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Mention what is rack awareness?

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What is the purpose of context object?

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Why does one remove or add nodes in a Hadoop cluster frequently?

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