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DELL D-DS-FN-23 Practice Test - Questions Answers, Page 4

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Question 31

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DRAG DROP

Match each task to its description.


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Question 32

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Executives want to determine whether a change in a shopping rewards program has been effective in getting customers to increase their spending. Which approach could be used to determine if a significant shift in spending has occurred?

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Question 33

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Consider this SQL statement: SELECT product, avg(prod_cost) FROM product_detail GROUP BY product. The GROUP BY clause implies what type of function?

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Question 34

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Which SQL OLAP grouping extension returns a result for each output row with 1 identifying a summary row and 0 identifying grouped rows?

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Question 35

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In a user-defined aggregate function, what is FFUNC?

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Question 36

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What metrics are used to help calculate relevance in text analysis?

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Question 37

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On which type of data should you run K-means clustering?

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Question 38

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What does ''MAD'' in MADlib stand for?

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Question 39

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In the data preparation phase of the data analytics lifecycle, what does the term ''data conditioning'' refer to?

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Question 40

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MapReduce is designed to process data in which way?

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