WGU C207 EXAMS NEWEST 2026/ 2027 PACKAGE
DEAL| DIFFERENT VERSIONS WITH COMPLETE ACTUAL
EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A | C207 DATA DRIVEN DECISION
MAKING FINAL EXAM PREP (MOST RECENT!!)
1. In which phase of the data analytics lifecycle is raw data
transformed into a structured format suitable for modeling?
a) Discovery
b) Data preparation
c) Model planning
d) Operationalize
Correct Answer: b
Rationale: Data preparation (also called data wrangling, ETL, or
data cleaning) involves transforming, cleaning, and structuring raw
data into a usable format for analysis or modeling.
1
,2. A healthcare analyst standardizes lab result units (e.g., all
glucose to mg/dL) before analysis. This occurs in which
phase?
a) Discovery
b) Data preparation
c) Model building
d) Communicate results
Correct Answer: b
Rationale: Standardizing units is a data transformation task, which
falls under data preparation. This ensures consistency before
modeling.
3. Which phase focuses on identifying the business problem
and formulating initial hypotheses?
a) Discovery
b) Data prep
c) Model planning
2
,d) Operationalize
Correct Answer: a
Rationale: The discovery phase includes understanding the business
problem, defining objectives, and forming initial hypotheses.
4. During model planning, a data scientist compares logistic
regression vs. decision trees. This activity belongs to:
a) Data prep
b) Discovery
c) Model planning
d) Data visualization
Correct Answer: c
Rationale: Model planning involves selecting candidate algorithms
and techniques before actual model building.
5. The operationalize phase includes:
a) Generating summary statistics
b) Deploying a model into production systems
3
, c) Defining project scope
d) Removing missing values
Correct Answer: b
Rationale: Operationalize is the phase where the model is deployed
into real-world production environments.
6. A retail company moves a churn prediction model from a
test environment to its CRM system. This is:
a) Model building
b) Discovery
c) Operationalize
d) Data reporting
Correct Answer: c
Rationale: Moving from test to production is deployment, which is
the core of operationalize.
7. Which phase typically uses dashboards to present findings
to executives?
4
DEAL| DIFFERENT VERSIONS WITH COMPLETE ACTUAL
EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A | C207 DATA DRIVEN DECISION
MAKING FINAL EXAM PREP (MOST RECENT!!)
1. In which phase of the data analytics lifecycle is raw data
transformed into a structured format suitable for modeling?
a) Discovery
b) Data preparation
c) Model planning
d) Operationalize
Correct Answer: b
Rationale: Data preparation (also called data wrangling, ETL, or
data cleaning) involves transforming, cleaning, and structuring raw
data into a usable format for analysis or modeling.
1
,2. A healthcare analyst standardizes lab result units (e.g., all
glucose to mg/dL) before analysis. This occurs in which
phase?
a) Discovery
b) Data preparation
c) Model building
d) Communicate results
Correct Answer: b
Rationale: Standardizing units is a data transformation task, which
falls under data preparation. This ensures consistency before
modeling.
3. Which phase focuses on identifying the business problem
and formulating initial hypotheses?
a) Discovery
b) Data prep
c) Model planning
2
,d) Operationalize
Correct Answer: a
Rationale: The discovery phase includes understanding the business
problem, defining objectives, and forming initial hypotheses.
4. During model planning, a data scientist compares logistic
regression vs. decision trees. This activity belongs to:
a) Data prep
b) Discovery
c) Model planning
d) Data visualization
Correct Answer: c
Rationale: Model planning involves selecting candidate algorithms
and techniques before actual model building.
5. The operationalize phase includes:
a) Generating summary statistics
b) Deploying a model into production systems
3
, c) Defining project scope
d) Removing missing values
Correct Answer: b
Rationale: Operationalize is the phase where the model is deployed
into real-world production environments.
6. A retail company moves a churn prediction model from a
test environment to its CRM system. This is:
a) Model building
b) Discovery
c) Operationalize
d) Data reporting
Correct Answer: c
Rationale: Moving from test to production is deployment, which is
the core of operationalize.
7. Which phase typically uses dashboards to present findings
to executives?
4
