Explain the features of stand alone (local) mode?
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What is HDFS ? How it is different from traditional file systems?
Why do we need a password-less ssh in fully distributed environment?
Explain how is hadoop different from other data processing tools?
What are different hdfs dfs shell commands to perform copy operation?
What is commodity hardware?
Which are the three main hdfs-site.xml properties?
What other technologies have you used in hadoop sta ck?
How does a namenode handle the failure of the data nodes?
Can you tell us more about ssh?
How we can change Replication factor when Data is on the fly?
How do you categorize a big data?
What is partioner in hadoop? Where does it run,mapper or reducer?