What is Mapper in Hadoop?
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Is Namenode machine same as DataNode machine as in terms of hardware in Hadoop?
What is Mapper in Hadoop?
How often do you need to reformat the namenode?
Give examples of some companies that are using Hadoop structure?
How many InputSplits will be made by hadoop framework?
What did mean by data-node?
Which are the three modes in which hadoop can be run?
Why use hadoop?
Clarify what is sqoop in hadoop?
How does speculative execution work in Hadoop?
What are the network requirements for hadoop?
What is Disk Balancer in Hadoop?
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