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If a table contains duplicate rows, will a query display duplicate values by default? How can you eliminate duplicate rows from a query result?
Please explain the difference between a Linear data structure and a non-linear data structure.
Explain Some practical applications of data structures.
Difference between file structure and storage structure?
What are the various operations that can be performed on a data structure?
List the standard port numbers on which Hadoop’s task tracker, NameNode, and job tracker operate.
How do you turn off the HDFS Data Node’s Block Scanner?