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WGU D204 DATA ANALYTICS OA ACTUAL EXAM
STUDY GUIDE 2025/2026 COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS WITH RATIONALES ||
100% GUARANTEED PASS <RECENT VERSION>
Pie charts .....Answer.....a graph in which a circle is divided into
sectors that each represent a portion or percentage of the
whole.
Scatter Plot .....Answer.....A graphed cluster of dots, each of
which represents the values of two variables. The slope of the
points suggests the direction of the relationship between the two
variables. The amount of scatter suggests the strength of the
correlation.
Difference between scripting and programing .....Answer.....The
primary difference between a scripting language and a
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programming language is in their execution - programming
languages use a compiler to convert the high-level programming
languages into machine language, on the other hand, scripting
languages use an interpreter.
Machine Learning vs. Artificial Intelligence .....Answer.....Artificial
Intelligence is the broader concept of machines being able to
carry out tasks in a way that we would consider "smart".
Machine Learning is a current application of AI based around
the idea that we should really just be able to give machines
access to data and let them learn for themselves.
Define SQL .....Answer.....Structured Query Language.
It is a domain-specific language used in programming and
designed for managing data held in a relational database
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management system, or for stream processing in a relational
data stream management system
Business Understanding (order) .....Answer.....1st in Data Analytics
Lifecycle
Data Acquisition (order) .....Answer.....2nd in Data Analytics
Lifecycle
Data Cleaning (order) .....Answer.....3rd in Data Analytics
Lifecycle
Data Exploration (order) .....Answer.....4th in Data Analytics
Lifecycle
Predictive Modeling (order) .....Answer.....5th in Data Analytics
Lifecycle
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Data Mining/Machine Learning (order) .....Answer.....6th in Data
Analytics Lifecycle
Reporting and Visualization (order) .....Answer.....7th in Data
Analytics Lifecycle
Business Understanding .....Answer.....- Also known as the
discovery phase or planning phase
- Analyst defines the major questions of interest
- Assesses the resource constraints of the project
- Determines the needs of stakeholders
Data Acquisition .....Answer.....- Collecting Data
- Data retrieved from DB
- Use SQL to obtain from Data Warehouse
WGU D204 DATA ANALYTICS OA ACTUAL EXAM
STUDY GUIDE 2025/2026 COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS WITH RATIONALES ||
100% GUARANTEED PASS <RECENT VERSION>
Pie charts .....Answer.....a graph in which a circle is divided into
sectors that each represent a portion or percentage of the
whole.
Scatter Plot .....Answer.....A graphed cluster of dots, each of
which represents the values of two variables. The slope of the
points suggests the direction of the relationship between the two
variables. The amount of scatter suggests the strength of the
correlation.
Difference between scripting and programing .....Answer.....The
primary difference between a scripting language and a
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programming language is in their execution - programming
languages use a compiler to convert the high-level programming
languages into machine language, on the other hand, scripting
languages use an interpreter.
Machine Learning vs. Artificial Intelligence .....Answer.....Artificial
Intelligence is the broader concept of machines being able to
carry out tasks in a way that we would consider "smart".
Machine Learning is a current application of AI based around
the idea that we should really just be able to give machines
access to data and let them learn for themselves.
Define SQL .....Answer.....Structured Query Language.
It is a domain-specific language used in programming and
designed for managing data held in a relational database
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management system, or for stream processing in a relational
data stream management system
Business Understanding (order) .....Answer.....1st in Data Analytics
Lifecycle
Data Acquisition (order) .....Answer.....2nd in Data Analytics
Lifecycle
Data Cleaning (order) .....Answer.....3rd in Data Analytics
Lifecycle
Data Exploration (order) .....Answer.....4th in Data Analytics
Lifecycle
Predictive Modeling (order) .....Answer.....5th in Data Analytics
Lifecycle
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Data Mining/Machine Learning (order) .....Answer.....6th in Data
Analytics Lifecycle
Reporting and Visualization (order) .....Answer.....7th in Data
Analytics Lifecycle
Business Understanding .....Answer.....- Also known as the
discovery phase or planning phase
- Analyst defines the major questions of interest
- Assesses the resource constraints of the project
- Determines the needs of stakeholders
Data Acquisition .....Answer.....- Collecting Data
- Data retrieved from DB
- Use SQL to obtain from Data Warehouse
