How can we check whether namenode is working or not?
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Define a metadata?
Mention what is the use of Context Object?
Does hadoop always require digital data to process?
Explain the overview of hadoop history breifly?
How is security achieved in Apache Hadoop?
How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
How to change from su to cloudera?
What are the Basics of Hadoop?
Explain the features of stand alone (local) mode?
How the HDFS Blocks are replicated?
What is formatting of the dfs?
How a task is scheduled by a jobtracker?
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