In which location Name Node stores its Metadata and why?
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If a data Node is full how it's identified?
Is hadoop based on google mapreduce?
What is a spill factor with respect to the ram?
What is a secondary namenode?
What is Rack awareness?
What are watches?
What do slaves consist of?
Explain the hadoop configuration files at present?
Explain a simple Map/Reduce problem.
Is hadoop a database?
What is HDFS ? How it is different from traditional file systems?
What is a Record Reader in hadoop?