Which activity is a common part of data preparation?

Defining business objectives for the project

Deploying a machine learning model to production

Handling missing values and correcting inconsistencies

Creating visual dashboards for stakeholders

A logistics company is preparing shipment data for route optimization. The data contains latitude and longitude coordinates, but some coordinates are outside the expected geographic range. What is the MOST appropriate data preparation action?

Ignore the invalid coordinates and proceed

Replace invalid coordinates with the mean

Remove the records with invalid coordinates

Correct the coordinates using a geocoding service

A manufacturing company is preparing sensor data for predictive maintenance. The data is collected at different frequencies from different machines. The data scientist needs to combine the data for analysis. What is the MOST critical data preparation activity?

Data cleaning to remove outliers

Data reduction to reduce data volume

Data transformation to align sampling frequencies

Data integration to combine all sources

Dell Data Science Foundations

Domain 2Objective 3

Data Preparation - Describe Details of This Phase, Including Activities and Associated Roles DATA-SCIENCE-FOUNDATIONS Practice Questions (Page 1)

Part of the Data Analytics Lifecycle domain, which accounts for 8% of the DATA-SCIENCE-FOUNDATIONS exam.

19questions here

4free pages

3concepts

8%of the exam

Questions 1–5

1foundation · easy
During the data preparation phase, which role is primarily responsible for building and maintaining the data pipelines that move and transform data?
Select an answer first
2foundation · easy
Which activity is a common part of data preparation?
Select an answer first
3foundation · easy
In the data analytics lifecycle, which phase typically follows data preparation?
Select an answer first
4application · medium
A logistics company is preparing shipment data for route optimization. The data contains latitude and longitude coordinates, but some coordinates are outside the expected geographic range. What is the MOST appropriate data preparation action?
Select an answer first
5expert · hard
A manufacturing company is preparing sensor data for predictive maintenance. The data is collected at different frequencies from different machines. The data scientist needs to combine the data for analysis. What is the MOST critical data preparation activity?
Select an answer first

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Data Preparation - Describe Details of This Phase, Including Activities and Associated Roles DATA-SCIENCE-FOUNDATIONS Practice Questions (Page 1)

Questions 1–5

During the data preparation phase, which role is primarily responsible for building and maintaining the data pipelines that move and transform data?

Which activity is a common part of data preparation?

In the data analytics lifecycle, which phase typically follows data preparation?

A logistics company is preparing shipment data for route optimization. The data contains latitude and longitude coordinates, but some coordinates are outside the expected geographic range. What is the MOST appropriate data preparation action?

A manufacturing company is preparing sensor data for predictive maintenance. The data is collected at different frequencies from different machines. The data scientist needs to combine the data for analysis. What is the MOST critical data preparation activity?

Keep studying — Data Analytics Lifecycle