1|Page
D204: The Data Analytics JOURNEY 2026 FINAL EXAM BANK
CURRENTLY TESTING COMPLETE EXAM QUESTIONS
WITH DETAILED VERIFIED ANSWERS /EXPERT
VERIFIED /ALREADY GRADED A+
Data scientists are able to find ______, _________, and _____ in
unstructured data. - ANSWERS--order, meaning, and value
What is involved in the planning phase? - ANSWERS--1. Defining
goals
2. Organizing resources
3. Coordinate people
4. Schedule project
What is involved in the wrangling phase? - ANSWERS--5. Get data
6. Clean data
7. Explore data
8. Refine data
What is involved in the Modeling phase? - ANSWERS--9. Create
model
10. Validate model
11. Evaluate model
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12. Refine model
What is involved in the Applying phase? - ANSWERS--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. - ANSWERS--
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. - ANSWERS--C, and C++, and Java
____________________ is a language for working with relational
databases to do queries and data manipulation. - ANSWERS--SQL
What does SQL stand for? - ANSWERS--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. - ANSWERS--Modeling
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These are the developers, and the system architects, the people who
focus on the hardware and the software that make data science
possible - ANSWERS--Data engineers
This is the phase of collecting data. - ANSWERS--Data acquisition
Which phase? - Working with stakeholders to help them ask better
questions so that both they and you understand the outcome. -
ANSWERS--Discovery
What are the 4 parts of data analytics cycle? - ANSWERS--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. - ANSWERS--Business
understanding
____________________ is the person who champions the vision of
the project and has the authority to allocate resources. - ANSWERS--
The project sponsor
__________________ is responsible for making sure things get done
on time and within budget and removes roadblocks. - ANSWERS--
Project manager
, 4|Page
___________ is when new requirements are added to the project
that increases the time/resources needed to complete it. -
ANSWERS--Scope creep
What are the 3 types of analysis? - ANSWERS--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? - ANSWERS--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? - ANSWERS--Predictive
analytics
_______________________ analysis with an end goal of making a
recommendation. What colors and sizes of shirts should we sell to
maximize profits? - ANSWERS--Prescriptive analytics
______________________ is just looking at any variable over time -
ANSWERS--Time series analysis
____________________ is a programing language that is specific to
statistics. It also has capabilities to visualize data. - ANSWERS--R
D204: The Data Analytics JOURNEY 2026 FINAL EXAM BANK
CURRENTLY TESTING COMPLETE EXAM QUESTIONS
WITH DETAILED VERIFIED ANSWERS /EXPERT
VERIFIED /ALREADY GRADED A+
Data scientists are able to find ______, _________, and _____ in
unstructured data. - ANSWERS--order, meaning, and value
What is involved in the planning phase? - ANSWERS--1. Defining
goals
2. Organizing resources
3. Coordinate people
4. Schedule project
What is involved in the wrangling phase? - ANSWERS--5. Get data
6. Clean data
7. Explore data
8. Refine data
What is involved in the Modeling phase? - ANSWERS--9. Create
model
10. Validate model
11. Evaluate model
,2|Page
12. Refine model
What is involved in the Applying phase? - ANSWERS--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. - ANSWERS--
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. - ANSWERS--C, and C++, and Java
____________________ is a language for working with relational
databases to do queries and data manipulation. - ANSWERS--SQL
What does SQL stand for? - ANSWERS--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. - ANSWERS--Modeling
,3|Page
These are the developers, and the system architects, the people who
focus on the hardware and the software that make data science
possible - ANSWERS--Data engineers
This is the phase of collecting data. - ANSWERS--Data acquisition
Which phase? - Working with stakeholders to help them ask better
questions so that both they and you understand the outcome. -
ANSWERS--Discovery
What are the 4 parts of data analytics cycle? - ANSWERS--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. - ANSWERS--Business
understanding
____________________ is the person who champions the vision of
the project and has the authority to allocate resources. - ANSWERS--
The project sponsor
__________________ is responsible for making sure things get done
on time and within budget and removes roadblocks. - ANSWERS--
Project manager
, 4|Page
___________ is when new requirements are added to the project
that increases the time/resources needed to complete it. -
ANSWERS--Scope creep
What are the 3 types of analysis? - ANSWERS--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? - ANSWERS--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? - ANSWERS--Predictive
analytics
_______________________ analysis with an end goal of making a
recommendation. What colors and sizes of shirts should we sell to
maximize profits? - ANSWERS--Prescriptive analytics
______________________ is just looking at any variable over time -
ANSWERS--Time series analysis
____________________ is a programing language that is specific to
statistics. It also has capabilities to visualize data. - ANSWERS--R
