Explain how is hadoop different from other data processing tools?
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How can you connect an application
How can we check whether namenode is working or not?
What is the difference between HDFS and NAS ?
What is a block and block scanner in HDFS?
What are the two main components of ResourceManager?
How does a namenode handle the failure of the data nodes?
What is the port number for NameNode
How the HDFS Blocks are replicated?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
What is a Combiner?
What is a task instance in hadoop? Where does it run?
Rack awareness of Namenode?
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