What is the most widely recognized info formats characterized in hadoop?
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Define data cleansing?
What sorts of actions does the job tracker process perform?
What are the port numbers of job tracker?
How often DataNode send heartbeat to NameNode in Hadoop?
What is Combiner in Hadoop?
Clarify what is sqoop in hadoop?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
Name the files which are used by the startup and shutdown commands?
Give me an example of document database ?
What are the benefits yarn brings in to hadoop?
How many daemon processes run on a hadoop cluster?
What did mean by data-node?
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