Is nosql follow relational db model?
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Which one is default?
Which scala library is used for functional programming?
Is there another way to check whether Namenode is working?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
How often do you need to reformat the namenode?
In hadoop_pid_dir, what does pid stands for?
What are the configuration files in Hadoop?
What are the benefits yarn brings in to hadoop?
Explain what is a sequence file in hadoop?
What does rack awareness mean?
What are input format, input split & record reader and what they do?
What is Fault Tolerance?
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