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Apache Hadoop Interview Questions
Un-Answered Questions { Apache Hadoop }
Main Components of Hadoop?
Can hive run without hadoop?
Have you ever used Counters in Hadoop. Give us an example scenario?
What will you do when NameNode is down?
How client application interacts with the NameNode?
What's the best way to copy files between HDFS clusters?
Is a job split into maps?
What are combiners and its purpose?
what are the nodes in the Hadoop cluster?
What are the functionalities of jobtracker?
Can you give us some more details about ssh communication between masters and the slaves?
What is unstructured data?
What are the two main components of ResourceManager?
What happens to a namenode, when job tracker is down?
Can NameNode and DataNode be a commodity hardware?
