How do you distinguish between NumPy and SciPy?
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What are the different DDL commands in SQL? Give a description of their purpose.
What does Hadoop’s Heartbeat mean?
Please enlist the various basic components of the defect report format?
What occurs if a user submits a new job when NameNode is down?
Why do we use the Pythonstartup environment variable?
Describe the Snowflake Schema.
What’s the difference between a view and a materialized view?
What is big data?
Explain data engineering.
What is a Tunnel Diode? also Explain the Characteristics of a Tunnel Diode and Give some Applications of Tunnel Diode.
Please define XPath.
What are the differences between an operational database and a data warehouse?
How are the elements of a 2D array are stored in the memory?