What does rack awareness algorithm means?
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Explain InputSplit in Hadoop?
In which directory hadoop is installed?
Why Hadoop performs replication, although it results in data redundancy?
What is NameNode? How NameNode tackle Datanode failures in Hadoop?
If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?
Tell me some major benefits of Hadoop?
Explain Hadoop streaming?
Ideally what should be the replication factor in hadoop?
What are the core methods of a Reducer?
What is structured and unstructured data?
What is namenode?
What is pseudo-distributed mode?
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