Explain edge nodes in hadoop?
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What is the default replication factor and how will you change it?
What is a single point of failure in Hadoop 1 and how is it resolved in Hadoop 2?
What are the Features of Hadoop?
How analysis of Big Data is useful for organizations?
What is the difference between TextInputFormat and KeyValueInputFormat class?
What do you understand by standalone (or local) mode?
Is it possible to have hadoop job output in multiple directories? If yes, how?
Clarify what is sequence file input format?
Where are hadoop’s configuration files located and list them?
What is Slot in Hadoop v1? Why was it removed from Hadoop v2?
Mention what is the difference between an rdbms and hadoop?
What is JobTracker?
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