What is commodity hardware?
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What is the functionality of jobtracker in hadoop?
What is Safemode in Apache Hadoop?
Define a task tracker?
What is the default replication factor?
What are the main components of a Hadoop Application?
How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?
What is the InputFormat ?
What is the sequencefileinputformat in hadoop?
What is formatting of the dfs?
What is cloudera and why it is used?
Explain the use of tasktracker in the hadoop cluster?
How does NameNode tackle DataNode failures?
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