PRE-ASSESSMENT: Discovering Data -
D468 correctly answered 100% correct
Which example is a pattern that can be observed during data analysis? - correct answer ✔✔ A
student gets up at 6:00 a.m. daily throughout the semester.
Which data analysis life cycle phase focuses on data generation, collection, storage, and
management? - correct answer ✔✔ Prepare
Why is it important to draw conclusions based on clean data versus raw data? - correct answer
✔✔ Clean data are structured, but raw data lack structure for understanding.
A client is worried about long wait lines at their retail store. Which question would be effective
for a better understanding of the problem? - correct answer ✔✔ Which hours have the most
customer visits?
Why are visuals helpful when trying to understand or solve a problem? - correct answer ✔✔
Visuals present data in an understandable form.
How does data design help ensure data strength? - correct answer ✔✔ It sets parameters and
determines how data are stored, accessed, and understood.
What does an analyst typically use first to solve a customer's problem, which was discovered
during the Ask phase? - correct answer ✔✔ Data set
Which activity takes place during the data preparation phase? - correct answer ✔✔ Data is
collected and the information is stored.
, Which phase of the data analysis life cycle addresses the communication and interpretation of
the data? - correct answer ✔✔ Share
How does the visualization process help to understand the data output? - correct answer ✔✔ It
presents data sets to identify trends and results.
Which activity is involved in the Share phase of the data analysis process? - correct answer ✔✔
Using data for storytelling
What does an analyst do during the Ask phase of the project life cycle? - correct answer ✔✔
Pose effective questions
What is the analyst drawing out during the Analysis phase of the data analysis life cycle, while
also assessing and identifying patterns and trends? - correct answer ✔✔ Conclusions
What is an advantage of using clean data for creating visualizations? - correct answer ✔✔ Clean
data is more accurate than raw data.
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? - correct 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? - correct answer ✔✔
Visualizations
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? - correct answer
✔✔ SQL (Structured Query Language)
D468 correctly answered 100% correct
Which example is a pattern that can be observed during data analysis? - correct answer ✔✔ A
student gets up at 6:00 a.m. daily throughout the semester.
Which data analysis life cycle phase focuses on data generation, collection, storage, and
management? - correct answer ✔✔ Prepare
Why is it important to draw conclusions based on clean data versus raw data? - correct answer
✔✔ Clean data are structured, but raw data lack structure for understanding.
A client is worried about long wait lines at their retail store. Which question would be effective
for a better understanding of the problem? - correct answer ✔✔ Which hours have the most
customer visits?
Why are visuals helpful when trying to understand or solve a problem? - correct answer ✔✔
Visuals present data in an understandable form.
How does data design help ensure data strength? - correct answer ✔✔ It sets parameters and
determines how data are stored, accessed, and understood.
What does an analyst typically use first to solve a customer's problem, which was discovered
during the Ask phase? - correct answer ✔✔ Data set
Which activity takes place during the data preparation phase? - correct answer ✔✔ Data is
collected and the information is stored.
, Which phase of the data analysis life cycle addresses the communication and interpretation of
the data? - correct answer ✔✔ Share
How does the visualization process help to understand the data output? - correct answer ✔✔ It
presents data sets to identify trends and results.
Which activity is involved in the Share phase of the data analysis process? - correct answer ✔✔
Using data for storytelling
What does an analyst do during the Ask phase of the project life cycle? - correct answer ✔✔
Pose effective questions
What is the analyst drawing out during the Analysis phase of the data analysis life cycle, while
also assessing and identifying patterns and trends? - correct answer ✔✔ Conclusions
What is an advantage of using clean data for creating visualizations? - correct answer ✔✔ Clean
data is more accurate than raw data.
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? - correct 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? - correct answer ✔✔
Visualizations
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? - correct answer
✔✔ SQL (Structured Query Language)
