In which location Name Node stores its Metadata and why?
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What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
Mention what is the use of Context Object?
How to Administering Hadoop?
What is Disk Balancer in Apache Hadoop?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
What is hadoop framework?
What do slaves consist of?
On what basis Namenode will decide which datanode to write on?
What should be the ideal replication factor in Hadoop Cluster?
What is a Task instance in Hadoop? Where does it run?1
How is security achieved in Apache Hadoop?
What is the relation between job and task in hadoop?
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