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WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA
EXAM NEWEST 2025/2026 NEWEST ACTUAL EXAM WITH
COMPLETE QUESTIONS AND VERIFIED ANSWERS
|ALREADY GRADED A+|
Define: Volatility; How it applies to Operational? Analytical? -
ANSWER-- Database updates in real time
- Operational Data is Volatile
- Analytical Data is NOT Volatile
Define: Detail; How it applies to operational and analytical DB? -
ANSWER-- A database that keeps record of individual
transactions; line items
- Operational: Detailed
- Analytical: Detailed
Define: Scope; How it applies to operational and analytical DB? -
ANSWER-- How far a database can reach
- Operational: incompatible
- Analytical: Enterprise-Wide/Summary
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Define: History; How it applies to operational and analytical DB? -
ANSWER-- Whether DB is current or tracks all data
- Operational: Current only
- Analytical: Tracks trends
Data warehouses are refreshed periodically with a 5-step
process: - ANSWER-1. Extraction
2. Cleanse
3. Integrate
4. Restructure
5. Load
What happens during Extraction? (ETL) - ANSWER-Data
extracted and put into staging area
What happens during Cleanse? (ETL) - ANSWER-Errors are
eliminated from data; standard abbreviations applied
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What happens during Integrate? (ETL) - ANSWER-Data is put
into a uniform structure; Data converted to uniform structure
What happens during Restructure? (ETL) - ANSWER-Data is
structured in a design that is optimal for analysis
What happens during Load? (ETL) - ANSWER-Data is loaded to
the data warehouse
What is an issue that is focused on the 'Load' component of ETL?
- ANSWER-Monitor refreshing volume and frequency
During which step in the ETL Process, is raw data aggregated? -
ANSWER-Transformation steps
What are the 6 different data mining activities? - ANSWER-1.
Clustering & Segmentation
2. Classification
3. Estimation
4. Prediction
WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA
EXAM NEWEST 2025/2026 NEWEST ACTUAL EXAM WITH
COMPLETE QUESTIONS AND VERIFIED ANSWERS
|ALREADY GRADED A+|
Define: Volatility; How it applies to Operational? Analytical? -
ANSWER-- Database updates in real time
- Operational Data is Volatile
- Analytical Data is NOT Volatile
Define: Detail; How it applies to operational and analytical DB? -
ANSWER-- A database that keeps record of individual
transactions; line items
- Operational: Detailed
- Analytical: Detailed
Define: Scope; How it applies to operational and analytical DB? -
ANSWER-- How far a database can reach
- Operational: incompatible
- Analytical: Enterprise-Wide/Summary
, Page |2
Define: History; How it applies to operational and analytical DB? -
ANSWER-- Whether DB is current or tracks all data
- Operational: Current only
- Analytical: Tracks trends
Data warehouses are refreshed periodically with a 5-step
process: - ANSWER-1. Extraction
2. Cleanse
3. Integrate
4. Restructure
5. Load
What happens during Extraction? (ETL) - ANSWER-Data
extracted and put into staging area
What happens during Cleanse? (ETL) - ANSWER-Errors are
eliminated from data; standard abbreviations applied
, Page |3
What happens during Integrate? (ETL) - ANSWER-Data is put
into a uniform structure; Data converted to uniform structure
What happens during Restructure? (ETL) - ANSWER-Data is
structured in a design that is optimal for analysis
What happens during Load? (ETL) - ANSWER-Data is loaded to
the data warehouse
What is an issue that is focused on the 'Load' component of ETL?
- ANSWER-Monitor refreshing volume and frequency
During which step in the ETL Process, is raw data aggregated? -
ANSWER-Transformation steps
What are the 6 different data mining activities? - ANSWER-1.
Clustering & Segmentation
2. Classification
3. Estimation
4. Prediction
