What Mapper does?
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What do sorting do?
What is the jobtracker and what it performs in a hadoop cluster?
What do the master class and the output class do?
Explain how input and output data format of the hadoop framework?
Can hive run without hadoop?
Explain the features of fully distributed mode?
What is a heartbeat in HDFS?
Explain how is hadoop different from other data processing tools?
What is salary of hadoop developer?
What do you know by storage and compute node?
How will you make changes to the default configuration files?
What are the functionalities of jobtracker?