Define data cleansing?
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What is data cleansing?
How to add/delete a Node to the existing cluster?
Explain Hadoop streaming?
Can you define udf?
What are the side effects of not running a secondary name node?
Compare Hadoop and RDBMS?
Explain the key benefits of using storm for real time processing?
How to handle bad records during parsing?
What jobtracker is in hadoop? What are the activities followed by hadoop?
What does secondary name-node means?
Is it possible to rename the output file, and if so, how?
What did mean by data-node?
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