What is cloudera and why it is used?
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What is the purpose of DataNode block scanner?
Who invented hadoop?
What are the different types of Znodes?
What does job conf class do?
How many Daemon processes run on a Hadoop system?
Does hadoop always require digital data to process?
Explain how do ‘map’ and ‘reduce’ works?
How to use Apache Zookeeper command line interface?
Explain how input and output data format of the hadoop framework?
What is the jobtracker and what it performs in a hadoop cluster?
What are the site-specific configuration files in Hadoop?
Is hadoop the future?