What is a primary key?
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How are identity operators different from membership operators?
What are Python decorators?
Describe the Star Schema.
Differentiate between list and tuple.
What is a foreign key?
Describe multithreading in Python.
How is a big data solution deployed?
Draw a comparison between the range and xrange in Python.
What is a composite key?
What is the difference between deep copy and shallow copy?
What do you know about FSCK?
How do you distinguish between NumPy and SciPy?
What is a surrogate key?
Describe the Snowflake Schema.
Describe the distributed Hadoop file system.
How can you achieve security in Hadoop?
What is a data structure?
What does Hadoop’s Heartbeat mean?
Please explain the difference between a Linear data structure and a non-linear data structure.
What is big data?
Explain Some practical applications of data structures.
What does FIFO entail?
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.
Explain the postfix expression.
How do you turn off the HDFS Data Node’s Block Scanner?
What is a multidimensional array?
Explain “rack awareness.”