Which is the best hadoop certification?
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Explain the hadoop configuration files at present?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
Can we call vms as pseudos?
What is the default replication factor?
What stored in HDFS?
What is the relation between job and task in hadoop?
Explain how is hadoop different from other data processing tools?
what is meaning Replication factor?
Define a commodity hardware? Does commodity hardware include ram?
explain Metadata in Namenode?
What is the purpose of button groups?
Mention what is the use of Context Object?
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