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Tools in Data Science, End Term

September 2025 term, 21 Dec 2025, Set 1

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Question 1

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Which data serialization format is most efficient for storing large numeric arrays with minimal overhead?

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A.
XML
B.
Parquet
C.
JSON
D.
Plain text CSV

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Which data serialization format is most efficient for storing large numeric arrays with minimal overhead? In Git, which command shows the differences between your working directory and the last commit? What does HTTP status code 429 indicate?