How does NameNode tackle DataNode failures?
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Explain how is hadoop different from other data processing tools?
Explain the features of fully distributed mode?
What happens to a NameNode that has no data?
Can hbase run without hadoop?
How can I restart namenode?
What are different hdfs dfs shell commands to perform copy operation?
Give the use of the bootstrap panel.
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
Can we have multiple entries in the master files?
Is hadoop the future?
What is a block and block scanner in HDFS?
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