We have already sql then why nosql?
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What are the Hadoop features extended to its eco-system components ?
Can you give some examples of Big Data?
What is Rack Awareness? What is its need in Hadoop?
Can we write map reduce program in other than java programming language. How?
Ideally what should be replication factor in a Hadoop cluster?
How to restart NameNode or all the daemons in Hadoop?
What are the features of Fully-Distributed mode?
How is security achieved in Hadoop?
What type of data hadoop can handle ?
Explain what is speculative execution?
What are the port numbers of namenode?
Are there any special requirements for namenode?
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