How is security achieved in Hadoop?
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What does hadoop-env.sh do?
How many datanodes can run on a single Hadoop cluster?
Can you give some examples of Big Data?
What is TaskTracker?
Compare Hadoop 2 and Hadoop 3?
Define “speculative execution” in hadoop?
What is replication factor?
Clarify what webdav is in hadoop?
What are the features of Fully-Distributed mode?
what happens when namenode goes down during file read operation in hadoop?
What a task tracker is in hadoop?
What is the difference between an inputsplit and a block?
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