What are the site-specific configuration files in Hadoop?
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How can we look for the namenode in the browser?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
How can you overwrite the replication factors in HDFS?
What is the communication channel between client and namenode/datanode?
What are different types of filesystem?
What is structured data?
What happens to a namenode, when job tracker is down?
Can we do online transactions(oltp) using hadoop?
What is HDFS - Hadoop Distributed File System?
Can you explain how do ‘map’ and ‘reduce’ work?
How can you connect an application
Explain how input and output data format of the hadoop framework?
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