Explain the Single point of Failure in Hadoop?
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How to do ‘map’ and ‘reduce’ works?
How often DataNode send heartbeat to NameNode in Hadoop?
What is partitioning?
Specify what the information segments utilized by hadoop are?
What is a rack?
How Hadoop is cost-effective?
Explain the usage of Context Object?
Name the operating system(s) which are supported for production hadoop deployment?
Explain how can we check whether namenode is working or not?
Can you explain indexing?
How Big is ‘Big Data’?
How many job tracker processes can run on a single Hadoop cluster?
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