What are the features of Fully-Distributed mode?
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What does rack awareness algorithm means?
What is the relationship between Jobs and Tasks in Hadoop?
What is a Heartbeat in Hadoop?
Explain how does hadoop classpath plays a vital role in stopping or starting in hadoop daemons?
What are the most common OutputFormat in Hadoop?
What is the use of recordreader in hadoop?
What is the difference between namenode and datanode in hadoop?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
Is nosql follow relational db model?
What is the role of the namenode?
How to debug Hadoop code?
What a task tracker is in hadoop?
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