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How Big is ‘Big Data’?
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More Hadoop General Interview Questions
Explain some important features of hadoop?
What is heartbeat in hadoop?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
Explain how can you check whether namenode is working beside using the jps command?
Can you define a checkpoint?
How often DataNode send heartbeat to NameNode in Hadoop?
What do you understand by a closure in scala?
List out the some common problems faced by data analyst?
What is Identity reducer?
What are the primary phases of the reducer?
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