What is structured data?
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What are the basic available commands in Hadoop sqoop ?
What happens to a NameNode that has no data?
Explain what if rack 2 and datanode fails?
What is Rack Awareness in Apache Hadoop?
If a data Node is full how it's identified?
What are watches?
what are Task Tracker and Job Tracker?
Define a task tracker?
What is the difference between a Hadoop and Relational Database and Nosql?
Explain the use of .mecia class?
What is a Secondary Namenode? Is it a substitute to the Namenode?
What are the benefits of block transfer?
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