How do you define "block" in HDFS?
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Explain how is hadoop different from other data processing tools?
What is MapFile?
Explain InputFormat?
What are the two main components of ResourceManager?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
What is HDFS Federation?
How do you categorize a big data?
How will you make changes to the default configuration files?
What are the functions of NameNode?
What is difference between split and block in hadoop?
What is keyvaluetextinputformat?
Explain the basic difference between traditional rdbms and hadoop?
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