Mention what is rack awareness?
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What is the purpose of context object?
What is the procedure for namenode recovery?
What is a commodity hardware? Does commodity hardware include RAM?
What does the file hadoop-metrics.properties do?
List Hadoop’s three configuration files?
Give examples of some companies that are using Hadoop structure?
What are the features of Fully-Distributed mode?
Who are ‘Data Scientists’?
What does the high availability of a name-node means? How is it accomplished?
How often DataNode send heartbeat to NameNode in Hadoop?
What a task tracker is in hadoop?
What type of data hadoop can handle ?
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