WGU D468 DISCOVERING DATA PA AND
OA PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ DISTINCT.
Answer: Select unique values.
◍ What is an advantage of using clean data for creating visualizations?.
Answer: Clean data is more accurate than raw data.
◍ During a stakeholder meeting, the client insists on assessing what the data
will look like with different influencing elements stored in the database.
Which tool does the analyst need in order to extract and manipulate large
data sets to meet the client's requirements?.
Answer: SQL (Structured Query Language)
◍ An analyst is explaining how applying functions in Microsoft Excel
spreadsheets can expedite data analysis and accuracy.How do functions
achieve that?.
Answer: Functions are commands that automatically perform specific tasks.
◍ Why is structured thinking the basis of finding the best solution to a
problem?.
Answer: It helps organize available information and identify the gaps.
◍ How should an analyst communicate data analysis insights in an email to
team members from different departments?.
Answer: By summarizing important takeaways by function
◍ COALESCE().
Answer: Return the first non-null value.
◍ What does an analyst typically use first to solve a customer's problem,
, which was discovered during the Ask phase?.
Answer: Data set
◍ An analyst has been gathering insight on consumer buying trends and wants
to present the complex data to stakeholders using easily understood
storytelling techniques. Which tool should be used for the presentation?.
Answer: Tableau
◍ During a planning session, a stakeholder emphasizes the need to see pictures
of the data instead of just data rows. What is the stakeholder describing?.
Answer: Visualizations
◍ Quantitative Data.
Answer: Numerical data that can be measured. Example: Sales figures.
◍ Why is it important to draw conclusions based on clean data versus raw
data?.
Answer: Clean data are structured, but raw data lack structure for
understanding.
◍ An analyst is reviewing the responses to a customer satisfaction survey and
is alarmed by the very low scores. On closer inspection, the analyst realizes
that this survey used a rating scale of just 1–3, and the average response was
a 2.8.How did the analyst use context to turn the raw data into meaningful
information?.
Answer: By analyzing the method used to create the data
◍ AVG().
Answer: Calculate average.
◍ Informed Consent.
Answer: Participants' agreement to data collection.
◍ Primary Key.
Answer: A unique identifier for each record in a table.
◍ Structural Metadata.
Answer: How data is organized.
OA PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ DISTINCT.
Answer: Select unique values.
◍ What is an advantage of using clean data for creating visualizations?.
Answer: Clean data is more accurate than raw data.
◍ During a stakeholder meeting, the client insists on assessing what the data
will look like with different influencing elements stored in the database.
Which tool does the analyst need in order to extract and manipulate large
data sets to meet the client's requirements?.
Answer: SQL (Structured Query Language)
◍ An analyst is explaining how applying functions in Microsoft Excel
spreadsheets can expedite data analysis and accuracy.How do functions
achieve that?.
Answer: Functions are commands that automatically perform specific tasks.
◍ Why is structured thinking the basis of finding the best solution to a
problem?.
Answer: It helps organize available information and identify the gaps.
◍ How should an analyst communicate data analysis insights in an email to
team members from different departments?.
Answer: By summarizing important takeaways by function
◍ COALESCE().
Answer: Return the first non-null value.
◍ What does an analyst typically use first to solve a customer's problem,
, which was discovered during the Ask phase?.
Answer: Data set
◍ An analyst has been gathering insight on consumer buying trends and wants
to present the complex data to stakeholders using easily understood
storytelling techniques. Which tool should be used for the presentation?.
Answer: Tableau
◍ During a planning session, a stakeholder emphasizes the need to see pictures
of the data instead of just data rows. What is the stakeholder describing?.
Answer: Visualizations
◍ Quantitative Data.
Answer: Numerical data that can be measured. Example: Sales figures.
◍ Why is it important to draw conclusions based on clean data versus raw
data?.
Answer: Clean data are structured, but raw data lack structure for
understanding.
◍ An analyst is reviewing the responses to a customer satisfaction survey and
is alarmed by the very low scores. On closer inspection, the analyst realizes
that this survey used a rating scale of just 1–3, and the average response was
a 2.8.How did the analyst use context to turn the raw data into meaningful
information?.
Answer: By analyzing the method used to create the data
◍ AVG().
Answer: Calculate average.
◍ Informed Consent.
Answer: Participants' agreement to data collection.
◍ Primary Key.
Answer: A unique identifier for each record in a table.
◍ Structural Metadata.
Answer: How data is organized.
