What is HDFS Federation?
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What is the jobtracker and what it performs in a hadoop cluster?
What are the default configuration files that are used in hadoop?
Explain the basic difference between traditional rdbms and hadoop?
Is map like a pointer?
Explain how do ‘map’ and ‘reduce’ works?
What should be the ideal replication factor in Hadoop Cluster?
How can you connect an application
Why do we use Hadoop?
How the Client communicates with HDFS?
What is InputSplit and RecordReader?
What do shuffling do?
Explain the master class and the output class do?
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