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D-DS-FN-23 Exam Dumps - Dell Data Science Foundations

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Question # 4

Which visualization technique should be avoided?

A.

Using a small number of contrasting colors to draw distinctions

B.

Using tables of numbers to present all of the data visually

C.

Achieving a high data-ink ratio

D.

Using visuals to illustrate key points

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Question # 5

In which programming language is Hadoop written?

A.

C++

B.

Scala

C.

Java

D.

Python

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Question # 6

Refer to the exhibit, which shows pairwise counts for items purchased together.

Consider the following association rule: Milk -> Eggs

What is value of the lift?

A.

1.18

B.

0.264

C.

120

D.

70.81

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Question # 7

Refer to the exhibit.

What is the approximate R-squared value for a linear regression model fitted to the data associated with this scatterplot?

A.

4

B.

0.96

C.

0.25

D.

16

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Question # 8

What characterizes the Hadoop Distributed File System?

A.

Peer to peer system designed to run on custom designed hardware

B.

Peer to peer system designed to run on commodity hardware

C.

Master/ slave system designed to run on custom designed hardware

D.

Master/ slave system designed to run on commodity hardware

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