What is NameNode? How NameNode tackle Datanode failures in Hadoop?
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What is the NameNode port number?
What does the high availability of a name-node means?
How Hadoop is cost-effective?
When should be hadoop archive create?
Which one is default?
If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?
How many daemon processes run on a hadoop cluster?
What is the difference between an inputsplit and a block?
What are the Features of Hadoop?
What is CAP Theorem? What aspects does Hadoop support from this theorem?
Why Hadoop performs replication, although it results in data redundancy?
Mention what job does the conf class do?
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