Which of the following best describes a characteristic of image data?

It consists of sequences of words and sentences

It contains only numerical values and no spatial information

It is typically represented as a grid of pixels with color or intensity values

It is always stored in a tabular format with rows and columns

Which of the following best describes the goal of an optimization problem in data science?

To find the best solution among feasible options given constraints

To group similar data points without predefined labels

To assign data points to predefined categories

To predict a future value based on historical data

A company wants to predict customer churn. Which of the following is an internal data source that could be relevant?

Industry-wide market share reports from a research firm

Social media sentiment about the company

Historical customer transaction and support interaction logs

Weather data from a national meteorological service

Which of the following is an example of unstructured data?

A spreadsheet of monthly sales figures

A collection of customer support emails

A table of customer names and purchase amounts

CertNexusCertified Data Science Practitioner (CDSP)

Domain 1Objective 3

Objective 1.3 Classify a Question into a Known Data Science Problem CERTIFIED-DATA-SCIENCE-PRACTITIONER Practice Questions (Page 5)

Part of the 1.0 Defining the need to be addressed through the application of data science domain, which accounts for 7-9% of the CERTIFIED-DATA-SCIENCE-PRACTITIONER exam.

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7-9%of the exam

Questions 21–25

21foundation · easy
Which of the following best describes a characteristic of image data?
Select an answer first
22foundation · easy
Which of the following best describes the goal of an optimization problem in data science?
Select an answer first
23foundation · easy
A streaming service wants to suggest movies to users based on their viewing history and ratings. This is an example of which type of data science problem?
Select an answer first
24foundation · easy
A company wants to predict customer churn. Which of the following is an internal data source that could be relevant?
Select an answer first
25foundation · easy
Which of the following is an example of unstructured data?
Select an answer first

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