WGU C175/D426 DATA MANAGEMENT
FOUNDATIONS OA. EXAM QUESTIONS
AND ANSWERS | 2026 UPDATE | 100%
CORRECT.
The exam coverage includes foundational database and information management concepts
assessed in WGU C175 / D426 Data Management Foundations OA Exam. It focuses on database
design, relational database concepts, data modeling, normalization, keys, constraints, and
structured query language (SQL) fundamentals. The exam also evaluates understanding of
tables, relationships, entity-relationship diagrams, data integrity, database security, and basic
data manipulation and retrieval. Emphasis is placed on organizing data efficiently,
understanding how databases support business operations, and applying core database
principles in real-world information systems contexts.
Which design type specifies database requirements without regard to a specific database
system?
Physical design
Conceptual design
Logical design
Abstract design - ANS Conceptual design
Which requirement within large, complex databases ensures users have limited access to the
database?
Recovery
@COPYRIGHT ALL RIGHTS RESERVED PAGE 1 OF 17
,Performance
Authorization
Confidentiality - ANS Authorization
3. What characterizes the rules of relational databases?
-They are logical constraints that ensure the data is valid.
-They are based on business policy and specific databases.
-They represent data volumes and rapidly changing data structures.
-They embody the theoretical foundation of the SQL language. - ANS They are logical
constraints that ensure the data is valid.
4. Which event will result in an error code and error description when using MySQL Server?
When the server or updates are incorrectly installed
When an SQL statement is entered to locate errors in the database
When an SQL statement is syntactically incorrect
When a Mac OS shortcut code is used on a Windows OS - ANS When an SQL statement is
syntactically incorrect
5. Which data type should be used to store whole integer values, such as age?
NUM
VARCHAR
DATE
INT - ANS INT
6. Which text-based interface is included in the MySQL Server Download?
@COPYRIGHT ALL RIGHTS RESERVED PAGE 2 OF 17
, MySQL Command-Line Client
MySQL Workbench
MySQL Enterprise
MySQL Community - ANS MySQL Command-Line Client
7. Which database system includes the World database during its installation?
MySQL
MongoDB
Oracle
PostgreSQL - ANS MySQL
8. What is the standardized language of relational database systems?
Contextual Query Language
Structured Query Language
Select Query Language
Object Query Language - ANS Structured Query Language
9. Which SQL sublanguage is used to manage database access?
Data Definition Language (DDL)
Data Query Language (DQL)
Data Manipulation Language (DML)
Data Control Language (DCL) - ANS Data Control Language (DCL)
10. Which SQL sublanguage is used to roll back database changes?
@COPYRIGHT ALL RIGHTS RESERVED PAGE 3 OF 17
FOUNDATIONS OA. EXAM QUESTIONS
AND ANSWERS | 2026 UPDATE | 100%
CORRECT.
The exam coverage includes foundational database and information management concepts
assessed in WGU C175 / D426 Data Management Foundations OA Exam. It focuses on database
design, relational database concepts, data modeling, normalization, keys, constraints, and
structured query language (SQL) fundamentals. The exam also evaluates understanding of
tables, relationships, entity-relationship diagrams, data integrity, database security, and basic
data manipulation and retrieval. Emphasis is placed on organizing data efficiently,
understanding how databases support business operations, and applying core database
principles in real-world information systems contexts.
Which design type specifies database requirements without regard to a specific database
system?
Physical design
Conceptual design
Logical design
Abstract design - ANS Conceptual design
Which requirement within large, complex databases ensures users have limited access to the
database?
Recovery
@COPYRIGHT ALL RIGHTS RESERVED PAGE 1 OF 17
,Performance
Authorization
Confidentiality - ANS Authorization
3. What characterizes the rules of relational databases?
-They are logical constraints that ensure the data is valid.
-They are based on business policy and specific databases.
-They represent data volumes and rapidly changing data structures.
-They embody the theoretical foundation of the SQL language. - ANS They are logical
constraints that ensure the data is valid.
4. Which event will result in an error code and error description when using MySQL Server?
When the server or updates are incorrectly installed
When an SQL statement is entered to locate errors in the database
When an SQL statement is syntactically incorrect
When a Mac OS shortcut code is used on a Windows OS - ANS When an SQL statement is
syntactically incorrect
5. Which data type should be used to store whole integer values, such as age?
NUM
VARCHAR
DATE
INT - ANS INT
6. Which text-based interface is included in the MySQL Server Download?
@COPYRIGHT ALL RIGHTS RESERVED PAGE 2 OF 17
, MySQL Command-Line Client
MySQL Workbench
MySQL Enterprise
MySQL Community - ANS MySQL Command-Line Client
7. Which database system includes the World database during its installation?
MySQL
MongoDB
Oracle
PostgreSQL - ANS MySQL
8. What is the standardized language of relational database systems?
Contextual Query Language
Structured Query Language
Select Query Language
Object Query Language - ANS Structured Query Language
9. Which SQL sublanguage is used to manage database access?
Data Definition Language (DDL)
Data Query Language (DQL)
Data Manipulation Language (DML)
Data Control Language (DCL) - ANS Data Control Language (DCL)
10. Which SQL sublanguage is used to roll back database changes?
@COPYRIGHT ALL RIGHTS RESERVED PAGE 3 OF 17
