On What concept the Hadoop framework works?
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How the Client communicates with HDFS?
What is Apache Hadoop YARN?
Define fault tolerance?
Explain how do ‘map’ and ‘reduce’ works?
If a data Node is full how it's identified?
Why password is needed in ssh localhost?
What are the stable versions of Hadoop?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
Is client the end user in HDFS?
Explain the master class and the output class do?
Explain what if rack 2 and datanode fails?
What are the benefits of block transfer?
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