Mention what is the difference between an rdbms and hadoop?
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What are the main components in Hadoop Eco-System and what are their functions ?
Mention what is the data storage component used by hadoop?
How to debug Hadoop code?
Can you explain combiner?
What are the functionalities of jobtracer?
What are the features of Fully-Distributed mode?
What is a single point of failure in Hadoop 1 and how is it resolved in Hadoop 2?
What did mean by data-node?
How NameNode tackle Datanode failures in Hadoop?
What are the four modules that make up the Apache Hadoop framework?
List out some common problems faced by data analyst?
What is difference between secondary namenode, checkpoint namenode & backupnode?
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