WGU D426 Data Management Foundations V3
2025 COMPREHENSIVE GUIDE WITH
QUESTIONS AND ANSWERS || 100% VERIFIED
LATEST UPDATE
Description: WGU D426 Data Management Foundations V3 (2025
edition) contains a complete question-and-answer guide. Covers
database design, SQL principles, data normalization, and information
governance. Fully verified for accuracy and curriculum alignment.
Keywords: WGU D426 Data Management Foundations V3 Database
Design SQL Information Governance Verified Answers
Section 1: Database Fundamentals & The Relational Model
1. What is the primary purpose of a database?
A) To create spreadsheets
B) To store and manage data in a structured way for efficient retrieval
and manipulation
C) To replace all file systems
D) To run web servers
2. What is a primary key in a relational table?
A) A key that must have duplicate values
B) The first column in a table
C) A unique identifier for each row in a table
D) A key that links to multiple tables
,3. Which of the following is a characteristic of the relational model?
A) Data is organized in a hierarchical tree structure.
B) Data is represented in two-dimensional tables.
C) Data is stored in a network of linked records.
D) Data is stored in unstructured files.
4. What is a foreign key?
A) A key that is not used anymore
B) An attribute in one table that references the primary key in another
table
C) A key that must always be unique
D) The main key for a database
5. Data independence allows for which of the following?
A) Changes in the physical storage without affecting the logical schema
B) Data to be entered independently
C) The database to run without a server
D) Tables to be independent of each other
6. In a relational database, a "relation" is synonymous with a:
A) Relationship line
B) Column
C) Table
D) Row
7. An "attribute" in a relational table is also known as a:
A) Row
B) Tuple
C) Column
D) Key
, 8. A "tuple" in a relational table is also known as a:
A) Column
B) Field
C) Row
D) Schema
9. The database schema refers to the:
A) Actual data stored in the database
B) Database administrator's manual
C) Logical structure or blueprint of the database
D) User interface for the database
10. The overall description of the database is called the:
A) Database instance
B) Database schema
C) Foreign key
D) Application program
Section 2: SQL (Structured Query Language) - DML
11. Which SQL keyword is used to retrieve data from a database?
A) GET
B) OPEN
C) SELECT
D) FETCH
12. The FROM clause in a SQL SELECT statement specifies:
A) The columns to be selected
B) The table(s) from which to retrieve data
C) The search condition for rows
D) The order of the results
2025 COMPREHENSIVE GUIDE WITH
QUESTIONS AND ANSWERS || 100% VERIFIED
LATEST UPDATE
Description: WGU D426 Data Management Foundations V3 (2025
edition) contains a complete question-and-answer guide. Covers
database design, SQL principles, data normalization, and information
governance. Fully verified for accuracy and curriculum alignment.
Keywords: WGU D426 Data Management Foundations V3 Database
Design SQL Information Governance Verified Answers
Section 1: Database Fundamentals & The Relational Model
1. What is the primary purpose of a database?
A) To create spreadsheets
B) To store and manage data in a structured way for efficient retrieval
and manipulation
C) To replace all file systems
D) To run web servers
2. What is a primary key in a relational table?
A) A key that must have duplicate values
B) The first column in a table
C) A unique identifier for each row in a table
D) A key that links to multiple tables
,3. Which of the following is a characteristic of the relational model?
A) Data is organized in a hierarchical tree structure.
B) Data is represented in two-dimensional tables.
C) Data is stored in a network of linked records.
D) Data is stored in unstructured files.
4. What is a foreign key?
A) A key that is not used anymore
B) An attribute in one table that references the primary key in another
table
C) A key that must always be unique
D) The main key for a database
5. Data independence allows for which of the following?
A) Changes in the physical storage without affecting the logical schema
B) Data to be entered independently
C) The database to run without a server
D) Tables to be independent of each other
6. In a relational database, a "relation" is synonymous with a:
A) Relationship line
B) Column
C) Table
D) Row
7. An "attribute" in a relational table is also known as a:
A) Row
B) Tuple
C) Column
D) Key
, 8. A "tuple" in a relational table is also known as a:
A) Column
B) Field
C) Row
D) Schema
9. The database schema refers to the:
A) Actual data stored in the database
B) Database administrator's manual
C) Logical structure or blueprint of the database
D) User interface for the database
10. The overall description of the database is called the:
A) Database instance
B) Database schema
C) Foreign key
D) Application program
Section 2: SQL (Structured Query Language) - DML
11. Which SQL keyword is used to retrieve data from a database?
A) GET
B) OPEN
C) SELECT
D) FETCH
12. The FROM clause in a SQL SELECT statement specifies:
A) The columns to be selected
B) The table(s) from which to retrieve data
C) The search condition for rows
D) The order of the results
