What are the basic available commands in Hadoop sqoop ?
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What are the basic available commands in Hadoop sqoop ?
In which location Name Node stores its Metadata and why?
Define a daemon?
Is hadoop based on google mapreduce?
What is your favourite tool in the hadoop ecosystem?
How does NameNode tackle DataNode failures?
Input Split & Record Reader and what they do?
Explain why the name ‘hadoop’?
What do you mean by taskinstance?
What does the command mapred.job.tracker do?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
Is hadoop a database?