Explain why do we need hadoop?
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What is NoSQL?
Main Components of Hadoop?
What are the benefits of block transfer?
Explain the use of .mecia class?
What stored in HDFS?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
What's the best way to copy files between HDFS clusters?
what is meaning Replication factor?
Explain the basic difference between traditional rdbms and hadoop?
What are the core components of Apache Hadoop?
How can one increase replication factor to a desired value in Hadoop?
How will format the HDFS ?