WGU C175/D426 DATA MANAGEMENT
FOUNDATIONS OA EXAM PREP QUESTIONS AND
ANSWERS 2026 GRADED A+
⩥ Which design type specifies database requirements without regard to a
specific database system?
Physical design
Conceptual design
Logical design
Abstract design. Answer: Conceptual design
⩥ 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.. Answer:
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. Answer: 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. Answer: INT
⩥ 6. Which text-based interface is included in the MySQL Server
Download?
MySQL Command-Line Client
MySQL Workbench
MySQL Enterprise
MySQL Community. Answer: MySQL Command-Line Client
, ⩥ 7. Which database system includes the World database during its
installation?
MySQL
MongoDB
Oracle
PostgreSQL. Answer: MySQL
⩥ 8. What is the standardized language of relational database systems?
Contextual Query Language
Structured Query Language
Select Query Language
Object Query Language. Answer: 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). Answer: Data Control Language (DCL)
⩥ 10. Which SQL sublanguage is used to roll back database changes?
FOUNDATIONS OA EXAM PREP QUESTIONS AND
ANSWERS 2026 GRADED A+
⩥ Which design type specifies database requirements without regard to a
specific database system?
Physical design
Conceptual design
Logical design
Abstract design. Answer: Conceptual design
⩥ 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.. Answer:
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. Answer: 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. Answer: INT
⩥ 6. Which text-based interface is included in the MySQL Server
Download?
MySQL Command-Line Client
MySQL Workbench
MySQL Enterprise
MySQL Community. Answer: MySQL Command-Line Client
, ⩥ 7. Which database system includes the World database during its
installation?
MySQL
MongoDB
Oracle
PostgreSQL. Answer: MySQL
⩥ 8. What is the standardized language of relational database systems?
Contextual Query Language
Structured Query Language
Select Query Language
Object Query Language. Answer: 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). Answer: Data Control Language (DCL)
⩥ 10. Which SQL sublanguage is used to roll back database changes?
