Can you define a checkpoint?
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Are job tracker and task trackers present in separate machines?
Can we deploy job tracker other than name node?
Can you define udf?
What is the purpose of context object?
Explain the core methods of the reducer?
What do you mean by the NameNode High Availability in hadoop?
What are the tools used in big data?
How to handle bad records during parsing?
When and how to create hadoop archive?
What are the modes in which Hadoop run?
What is streaming access?
What is the basic difference between traditional RDBMS and Hadoop?
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