What is Slot in Hadoop v1? Why was it removed from Hadoop v2?
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What is the difference between an inputsplit and a block?
Explain what is a task tracker in hadoop?
What are the actions followed by hadoop?
What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
What is streaming in Hadoop?
Why Hadoop performs replication, although it results in data redundancy?
Ideally what should be the replication factor in hadoop?
Why slaves limited to 4000 in hadoop version 1?
Clarify what is sequence file input format?
If datanodes increase, then do we need to upgrade namenode?
What is Distributed Cache in Hadoop?
List Hadoop’s three configuration files?
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