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WGU D426 V2 DATA MANAGEMENT FOUNDATIONS OA EXAM ACTUAL EXAM LATEST UPDATED EXAM 160 QUESTIONS AND VERIFIED ANSWERS. ALREADY GRADED A+$18.99
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WGU D426 V2 DATA MANAGEMENT
FOUNDATIONS OA EXAM 2024-2025
ACTUAL EXAM LATEST UPDATED
EXAM 160 QUESTIONS AND
VERIFIED ANSWERS. ALREADY
GRADED A+
1. The relationship (within the relation) that describes how the value
of one attribute may be used to find the value of another attribute.:
Functional Dependency
2. An attribute that can be used to find the value of another attribute
in the relation.: Determinant
3. Value can be used to find the value of every other non-key attribute
in the table. Unique and minimal.: Candidate Key
4. Define & manage database structures: DDL
5. Adding, deleting, and modifying data - Manipulates data stored in a
database.: DML
6. Used to create user accounts, manage permissions and access.: DCL
7. Includes CREATE, DROP, ALTER, TRUNCATE, RENAME: DDL
, 8. A view created and stored on the database. Underlying data is
changed and also updated in this view. Uses memory space.:
Materialized View
9. Not stored in memory. Only computed when used or accessed.: Virtual
View
10. The data about the data. Describes elements such as columns,
names, and data type.: Metadata
11. Ordered collection of elements in parentheses.: Tuple
12. % of table rows selected by a query: Hit Ration
13. Reads blocks directly, without accessing an index.: Table Scan
14. Reads index blocks sequentially in order to locate the needed table
blocks.: Index Scan
15. Database repeatedly splits the index in two until it finds a match.:
Binary Search
16. Database object that maps one or more tables to a single file.:
Tablespace
17. 17. Specifies tables, columns, and keys. Implements database
requirements in a specific database system. Also called a schema.:
Logical Design
18. Specifies indexes, table structures, and partitions. Specifies how
tables are organized on storage media.: Physical Design
19. Components of a computer system and the relationships between
components.: Architecture
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