WGU D426 V2
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,Question 1
The relationship (within the relation) that describes how the value of one attribute may be used to find the value of
another attribute.
Correct Answer
Functional Dependency
Question 2
An attribute that can be used to find the value of another attribute in the relation.
Correct Answer
Determinant
Question 3
Value can be used to find the value of every other non-key attribute in the table. Unique and minimal.
Correct Answer
Candidate Key
Question 4
Define & manage database structures
Correct Answer
DDL
Question 5
Adding, deleting, and modifying data - Manipulates data stored in a database.
Correct Answer
DML
Question 6
Used to create user accounts, manage permissions and access.
Correct Answer
DCL
Question 7
Includes CREATE, DROP, ALTER, TRUNCATE, RENAME
Correct Answer
DDL
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, Question 8
A view created and stored on the database. Underlying data is changed and also updated in this view. Uses memory
space.
Correct Answer
Materialized View
Question 9
Not stored in memory. Only computed when used or accessed.
Correct Answer
Virtual View
Question 10
The data about the data. Describes elements such as columns, names, and data type.
Correct Answer
Metadata
Question 11
Ordered collection of elements in parentheses.
Correct Answer
Tuple
Question 12
% of table rows selected by a query
Correct Answer
Hit Ration
Question 13
Reads blocks directly, without accessing an index.
Correct Answer
Table Scan
Question 14
Reads index blocks sequentially in order to locate the needed table blocks.
Correct Answer
Index Scan
Question 15
Database repeatedly splits the index in two until it finds a match.
Correct Answer
Binary Search
Trusted by thousands of students and professionals worldwide Page 3 of 23
160+ (Latest 2025-2026 Edition) 100%
Verified Q&A + Answer Key Solutions
100% Guarantee Pass
✓ This Exam contains: WGU D426 V2
✓ 100% Accurate Questions and Answers
✓ 100% Guarantee Pass - Verified by Experts
✓ Each Question Includes The Correct Answer
✓ Expert-Verified
Trusted by thousands of students and professionals worldwide Page 1 of 23
,Question 1
The relationship (within the relation) that describes how the value of one attribute may be used to find the value of
another attribute.
Correct Answer
Functional Dependency
Question 2
An attribute that can be used to find the value of another attribute in the relation.
Correct Answer
Determinant
Question 3
Value can be used to find the value of every other non-key attribute in the table. Unique and minimal.
Correct Answer
Candidate Key
Question 4
Define & manage database structures
Correct Answer
DDL
Question 5
Adding, deleting, and modifying data - Manipulates data stored in a database.
Correct Answer
DML
Question 6
Used to create user accounts, manage permissions and access.
Correct Answer
DCL
Question 7
Includes CREATE, DROP, ALTER, TRUNCATE, RENAME
Correct Answer
DDL
Trusted by thousands of students and professionals worldwide Page 2 of 23
, Question 8
A view created and stored on the database. Underlying data is changed and also updated in this view. Uses memory
space.
Correct Answer
Materialized View
Question 9
Not stored in memory. Only computed when used or accessed.
Correct Answer
Virtual View
Question 10
The data about the data. Describes elements such as columns, names, and data type.
Correct Answer
Metadata
Question 11
Ordered collection of elements in parentheses.
Correct Answer
Tuple
Question 12
% of table rows selected by a query
Correct Answer
Hit Ration
Question 13
Reads blocks directly, without accessing an index.
Correct Answer
Table Scan
Question 14
Reads index blocks sequentially in order to locate the needed table blocks.
Correct Answer
Index Scan
Question 15
Database repeatedly splits the index in two until it finds a match.
Correct Answer
Binary Search
Trusted by thousands of students and professionals worldwide Page 3 of 23
