Name the operating system(s) which are supported for production hadoop deployment?
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What are the common types of NOSQL data bases ?
What is pseudo-distributed mode?
How often DataNode send heartbeat to NameNode in Hadoop?
Why we use intwritable instead of int? Why we use longwritable instead of long?
What jobtracker is in hadoop? What are the activities followed by hadoop?
How many InputSplits will be made by hadoop framework?
What happen on the namenode when a client tries to read a data file?
If DataNode increases, then do we need to upgrade NameNode?
Specify what the information segments utilized by hadoop are?
Give examples of some companies that are using Hadoop structure?
What is fsck?
What is structured and unstructured data?
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