WGU D204 THE DATA ANALYTICS JOURNEY
286 QUESTIONS WITH VERIFIED ANSWERS
2025/2026
Data scientists are able to find ______, _________, and _____ in unstructured
data. - CORRECT ANSWER order, meaning, and value
What is involved in the planning phase? - CORRECT ANSWER 1. Defining goals
2. Organizing resources
3. Coordinate people
4. Schedule project
What is involved in the wrangling phase? - CORRECT ANSWER 5. Get data
6. Clean data
7. Explore data
8. Refine data
What is involved in the Modeling phase? - CORRECT ANSWER 9. Create model
10. Validate model
11. Evaluate model
12. Refine model
What is involved in the Applying phase? - CORRECT ANSWER 13. Present model
14. Deploy model
,15. Revisit model
16. Archive assets
____________________ are programming languages that are very frequently
used for data manipulation and modeling. - CORRECT ANSWER Python or R
___________ are general-purpose languages that are used for the back end, the
foundational elementsterm-26 of data science, and they provide maximum speed.
- CORRECT ANSWER C, and C++, and Java
____________________ is a language for working with relational databases to do
queries and data manipulation. - CORRECT ANSWER SQL
What does SQL stand for? - CORRECT ANSWER structured query language
This is where you actually create the statistical model and you do the linear
regression. You do the decision tree. You do the deep learning neural network. -
CORRECT ANSWER Modeling
These are the developers, and the system architects, the people who focus on the
hardware and the software that make data science possible - CORRECT ANSWER
Data engineers
This is the phase of collecting data. - CORRECT ANSWER Data acquisition
,Which phase? - Working with stakeholders to help them ask better questions so
that both they and you understand the outcome. - CORRECT ANSWER Discovery
What are the 4 parts of data analytics cycle? - CORRECT ANSWER Planning,
Wrangling, Modeling and Applying
This phase is also known as the discovery phase. During this phase, an analyst
defines the major questions of interest that need to be answered, understand the
needs of the stakeholders, and assess the resource constraints in the project. -
CORRECT ANSWER Business understanding
____________________ is the person who champions the vision of the project
and has the authority to allocate resources. - CORRECT ANSWER The project
sponsor
__________________ is responsible for making sure things get done on time and
within budget and removes roadblocks. - CORRECT ANSWER Project manager
___________ is when new requirements are added to the project that increases
the time/resources needed to complete it. - CORRECT ANSWER Scope creep
What are the 3 types of analysis? - CORRECT ANSWER Descriptive, Predictive,
Prescriptive
___________________________ describes the data that is present. Mean,
Median, Mode, counting things. How many of each size and color of shirt were
, sold in the last month? Do we sell more shirts in the summer vs winter? -
CORRECT ANSWER Descriptive analysis
____________________ makes predictions about future state of business.
Forecasting volumes for example. Based on last summer and winter, what will we
sell next year? - CORRECT ANSWER Predictive analytics
_______________________ analysis with an end goal of making a
recommendation. What colors and sizes of shirts should we sell to maximize
profits? - CORRECT ANSWER Prescriptive analytics
______________________ is just looking at any variable over time - CORRECT
ANSWER Time series analysis
____________________ is a programing language that is specific to statistics. It
also has capabilities to visualize data. - CORRECT ANSWER R
_______________ is a multipurpose programing language that has libraries that
extend its capabilities to do statistical analysis. - CORRECT ANSWER Python
______________________ are platforms that specialize in visualization. This is
where you can make graphs and charts for presentations and data storytelling to
executive leaders. - CORRECT ANSWER Tableau and Power BI
_______________________ are instant messaging platforms that facilitate in a
faster, but less formal, way than email. - CORRECT ANSWER Teams, Slack
286 QUESTIONS WITH VERIFIED ANSWERS
2025/2026
Data scientists are able to find ______, _________, and _____ in unstructured
data. - CORRECT ANSWER order, meaning, and value
What is involved in the planning phase? - CORRECT ANSWER 1. Defining goals
2. Organizing resources
3. Coordinate people
4. Schedule project
What is involved in the wrangling phase? - CORRECT ANSWER 5. Get data
6. Clean data
7. Explore data
8. Refine data
What is involved in the Modeling phase? - CORRECT ANSWER 9. Create model
10. Validate model
11. Evaluate model
12. Refine model
What is involved in the Applying phase? - CORRECT ANSWER 13. Present model
14. Deploy model
,15. Revisit model
16. Archive assets
____________________ are programming languages that are very frequently
used for data manipulation and modeling. - CORRECT ANSWER Python or R
___________ are general-purpose languages that are used for the back end, the
foundational elementsterm-26 of data science, and they provide maximum speed.
- CORRECT ANSWER C, and C++, and Java
____________________ is a language for working with relational databases to do
queries and data manipulation. - CORRECT ANSWER SQL
What does SQL stand for? - CORRECT ANSWER structured query language
This is where you actually create the statistical model and you do the linear
regression. You do the decision tree. You do the deep learning neural network. -
CORRECT ANSWER Modeling
These are the developers, and the system architects, the people who focus on the
hardware and the software that make data science possible - CORRECT ANSWER
Data engineers
This is the phase of collecting data. - CORRECT ANSWER Data acquisition
,Which phase? - Working with stakeholders to help them ask better questions so
that both they and you understand the outcome. - CORRECT ANSWER Discovery
What are the 4 parts of data analytics cycle? - CORRECT ANSWER Planning,
Wrangling, Modeling and Applying
This phase is also known as the discovery phase. During this phase, an analyst
defines the major questions of interest that need to be answered, understand the
needs of the stakeholders, and assess the resource constraints in the project. -
CORRECT ANSWER Business understanding
____________________ is the person who champions the vision of the project
and has the authority to allocate resources. - CORRECT ANSWER The project
sponsor
__________________ is responsible for making sure things get done on time and
within budget and removes roadblocks. - CORRECT ANSWER Project manager
___________ is when new requirements are added to the project that increases
the time/resources needed to complete it. - CORRECT ANSWER Scope creep
What are the 3 types of analysis? - CORRECT ANSWER Descriptive, Predictive,
Prescriptive
___________________________ describes the data that is present. Mean,
Median, Mode, counting things. How many of each size and color of shirt were
, sold in the last month? Do we sell more shirts in the summer vs winter? -
CORRECT ANSWER Descriptive analysis
____________________ makes predictions about future state of business.
Forecasting volumes for example. Based on last summer and winter, what will we
sell next year? - CORRECT ANSWER Predictive analytics
_______________________ analysis with an end goal of making a
recommendation. What colors and sizes of shirts should we sell to maximize
profits? - CORRECT ANSWER Prescriptive analytics
______________________ is just looking at any variable over time - CORRECT
ANSWER Time series analysis
____________________ is a programing language that is specific to statistics. It
also has capabilities to visualize data. - CORRECT ANSWER R
_______________ is a multipurpose programing language that has libraries that
extend its capabilities to do statistical analysis. - CORRECT ANSWER Python
______________________ are platforms that specialize in visualization. This is
where you can make graphs and charts for presentations and data storytelling to
executive leaders. - CORRECT ANSWER Tableau and Power BI
_______________________ are instant messaging platforms that facilitate in a
faster, but less formal, way than email. - CORRECT ANSWER Teams, Slack
