Explain the benefits of block transfer?
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What is safe mode in Hadoop?
What is a namenode? How many instances of namenode run on a hadoop cluster?
Explain the features of stand alone (local) mode?
What is the Use of SSH in Hadoop ?
Explain the basic architecture of Hadoop?
Explain the difference between NameNode
What happens in a textinputformat?
Mention what are the data components used by Hadoop?
What is oozie in hadoop?
On what basis data will be stored on a rack?
What is Hadoop streaming?
What is Disk Balancer in Apache Hadoop?
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