Page 1 of 76
WGU D426 EXAM DATA MANAGEMENT FOUNDATIONS
EXAM VERSION A, B & C LATEST UPDATE THIS YEAR ALL
350 QUESTIONS AND CORRECT DETAILED ANSWERS -
JUST RELEASED
WGU D426 EXAM DATA MANAGEMENT FOUNDATIONS EXAM A
QUESTION: Which design type specifies database requirements without regard to a specific
database system?
Physical design
Conceptual design
Logical design
Abstract design - ANSWER-Conceptual design
QUESTION: 2. 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.
3. Which requirement within large, complex databases ensures users have limited access to the
database?
Recovery
Performance
Authorization
1
,Page 2 of 76
Confidentiality - ANSWER-Authorization
QUESTION: 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
QUESTION: 5. Which data type should be used to store whole integer values, such as age?
NUM
VARCHAR
DATE
INT - ANSWER-INT
QUESTION: 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
QUESTION: 7. Which database system includes the World database during its installation?
2
, Page 3 of 76
MySQL
MongoDB
Oracle
PostgreSQL - ANSWER-MySQL
QUESTION: 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
QUESTION: 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)
QUESTION: 10. Which SQL sublanguage is used to roll back database changes?
Data Transaction Language (DTL)
Data Manipulation Language (DML)
Data Query Language (DQL)
Data Control Language (DCL) - ANSWER-Data Transaction Language (DTL)
3
WGU D426 EXAM DATA MANAGEMENT FOUNDATIONS
EXAM VERSION A, B & C LATEST UPDATE THIS YEAR ALL
350 QUESTIONS AND CORRECT DETAILED ANSWERS -
JUST RELEASED
WGU D426 EXAM DATA MANAGEMENT FOUNDATIONS EXAM A
QUESTION: Which design type specifies database requirements without regard to a specific
database system?
Physical design
Conceptual design
Logical design
Abstract design - ANSWER-Conceptual design
QUESTION: 2. 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.
3. Which requirement within large, complex databases ensures users have limited access to the
database?
Recovery
Performance
Authorization
1
,Page 2 of 76
Confidentiality - ANSWER-Authorization
QUESTION: 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
QUESTION: 5. Which data type should be used to store whole integer values, such as age?
NUM
VARCHAR
DATE
INT - ANSWER-INT
QUESTION: 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
QUESTION: 7. Which database system includes the World database during its installation?
2
, Page 3 of 76
MySQL
MongoDB
Oracle
PostgreSQL - ANSWER-MySQL
QUESTION: 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
QUESTION: 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)
QUESTION: 10. Which SQL sublanguage is used to roll back database changes?
Data Transaction Language (DTL)
Data Manipulation Language (DML)
Data Query Language (DQL)
Data Control Language (DCL) - ANSWER-Data Transaction Language (DTL)
3
