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Tell me some major benefits of Hadoop?
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Explain the common input formats in hadoop?
Do we need to place 2nd and 3rd data in rack 2 only?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
Why is checkpointing important in hadoop?
Why Hadoop performs replication, although it results in data redundancy?
Doesn’t google have its very own version of dfs?
What is CAP Theorem? What aspects does Hadoop support from this theorem?
What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
What are input format, input split & record reader and what they do?
What does rack awareness algorithm means and why is it utilized as a part of hadoop?
Is hadoop still in demand?
What are the configuration files in Hadoop?
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