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Expand on HDFS.
What is a composite key?
Describe how Hive is used in the Hadoop ecosystem.
Power supplies are available in a wide range of voltage and current ratings. If I have a device that has specific voltage and current ratings, how do those relate to the power ratings I need to specify? What if I ...Read more
What is a foreign key?
What are the applications of queue data structure?
Describe NameNode.
What are the different DDL commands in SQL? Give a description of their purpose.
What occurs if a user submits a new job when NameNode is down?
Describe the HDFS Safe mode.