What is commodity hardware?
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What do you understand from Node redundancy and is it exist in hadoop cluster?
what is a datanode?
What are the limitations of importing RDBMS tables into Hcatalog directly?
What is a secondary namenode?
How the HDFS Blocks are replicated?
What do you mean by taskinstance?
Is it necessary to know java to learn hadoop?
How hdfa differs with nfs?
Define a job tracker?
What is a namenode? How many instances of namenode run on a hadoop cluster?
What is the difference between SQL and NoSQL?
Define a commodity hardware? Does commodity hardware include ram?
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