What do you understand by standalone (or local) mode?
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Why do we need Hadoop Archives? How is it created?
What does block mean?
What is tasktracker in hadoop?
What does the file hadoop-metrics.properties do?
How will you write a custom partitioner for a Hadoop job?
If datanodes increase, then do we need to upgrade namenode?
Explain the core methods of the reducer?
Clarify how job tracker schedules an assignment?
Why aggregation cannot be done in Mapper?
What is check pointing in hadoop?
When we send a data to a node, do we allow settling in time, before sending another data to that node?
When and how to create hadoop archive?
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