WGU D491 INTRODUCTION TO ANALYTICS OA EXAM AND STUDY GUIDE NEWEST 2025 ACTUAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS LATEST 4 VERSIONS]) |ALREADY GRADED A+

WGU D491 INTRODUCTION TO ANALYTICS OA EXAM AND STUDY GUIDE NEWEST 2025
ACTUAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS LATEST 4
VERSIONS]) |ALREADY GRADED A+



1. Which role is responsible for project initiation and providing the require-
ments for a project? ..> correct answer >> Project sponsor

2. Which job position is primarily responsible for designing and constructing
data pipelines within the field of data analytics? ..> correct answer >> Data
engineer

3. Which role in a data analytics project helps data scientists shape data for
analysis? ..> correct answer >> Data engineer

4. Which role in a data analytics project provides expertise for analytical
techniques? ..> correct answer >> Data scientist

5. Which skills are required by data scientists for converting unstructured data
to structured data in data analytics projects? ..> correct answer >> Data
wrangling skills

6. Which skill must a business intelligence analyst possess to collect and
organize data? ..> correct answer >> Data preparation

7. Which project-related activity typically takes up the majority of a data ana-
lyst's time? ..> correct answer >> Data preparation

8. Which software do business intelligence analysts use to perform their
responsibilities? ..> correct answer >> Microsoft Excel

9. What is a skill required of a data engineer? ..> correct answer >> Maintainin
databases






,10. delete ..> correct answer >>

11. Which group of stakeholders comprises the professionals, such as line
managers? ..> correct answer >> Business users

12. Which stakeholder is primarily responsible for ensuring the desired quality
of the project? ..> correct answer >> Project managers

13. Which stakeholder has access to essential tables or storage systems and
guarantees the highest levels of security in the data repository? ..> correct
answer >> Database administrator

14. Why is it significant to establish failure criteria for a data analytics project
in the discovery phase? ..> correct answer >> It helps the team determine
when it is best to accept the conclusions.

15. Which stakeholder extracts and transforms data during the discovery
phase? ..> correct answer >> Data engineer

16. A person has been assigned to manage a project to implement a compa-
ny-wide customer relationship management (CRM) system. The CRM system
aims to centralize customer details, automate sales processes, and improve
customer service.

What skills are crucial for the project team members working on the CRM
system implementation? ..> correct answer >> Data analysis, system
integration, and training






,17. Why is formulating an initial hypothesis an integral part of the discovery
phase of the data analytics lifecycle? ..> correct answer >> It guides the
subsequent data collection, processing, and analysis activities.

18. Who should be included as stakeholders in an analytics project? ..>
correct answer >> Anyone who will benefit from the project

19. Who offers suggestions on ideas to test as the team formulates hypothe-
ses during the discovery phase of a data analytics project? ..> correct
answer >> Data scientists

20. Which activity occurs during the data preparation phase of the data ana-
lytics lifecycle? ..> correct answer >> Understanding of data

21. Which data visualization is most suitable for understanding the trend and
progression of a variable over time in the data preparation phase? ..> correct
answer >> Line charts

22. Which task is commonly performed to identify and address data quality
issues during the data preparation phase? ..> correct answer >>
Conducting data profiling

23. Which common data cleaning task is used to address the missing data in
a data set? ..> correct answer >> Imputation

24. Which task is typically performed to handle outliers during the data prepa-
ration phase? ..> correct answer >> Truncating extreme values

25. A data analyst at a retail company is provided with a large dataset contain-
ing sales transactions, customer information, and product details. The analyst
is tasked with preparing the data for analysis and modeling.

Which activity would the analyst perform during the data preparation phase?-

..> correct answer >> Exploring available data to understand its characteristics
and suitability

3 B/ B28

, 26. Which activity is performed during the model planning phase of a data
B B B B B B B B B B B


analysis project? ..> correct answer >> Selecting relevant features for
B B B B B B BB B B B


modeling
B




27. Which programming language is primarily used for statistical analysis and
B B B B B B B B B


data manipulation in the model planning phase? ..> correct answer >> R
B B B B B B B B B B B BB




28. Which classification model is based on the concept of probability and
B B B B B B B B B B


assigns class labels to instances based on the possibility of belonging to
B B B B B B B B B B B B


a particular class? ..> correct answer >> Naive Bayes
B B B B B B B BB B




29. Which tool is used to connect users to relational databases and
B B B B B B B B B B


data warehouse appliances in the model planning phase? ..> correct
B B B B B B B B B B


answer
B B


>> SAS/ACCESS BB




30. Which regression model is commonly used for predicting a continuous
B B B B B B B B B


numerical outcome based on a set of input features? ..> correct answer
B B B B B B B B B B B B


>> Linear regression
B B B




31. Which phase of the data analytics life cycle involves running
B B B B B B B B B


analytical software packages on small datasets to test and refine models?
B B B B B B B B B B B


..> correct answer >> Model execu- tion phase
B B BB B BB B B B




32. Which step is typically performed after executing the model in the model
B B B B B B B B B B B


execution phase? ..> correct answer >> Result analysis
B B B B B B BB B




4 B/ B28