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WGU Data Management – Foundations Sample Questions:

1. Which function measures a numeric value's distance from 0?

A) ABS
B) FROM
C) CONCAT
D) LOWER

2. What is information independence?

A) An ability to change database type
B) An ability to interchange databases
C) An ability to make changes to existing queries
D) An ability to change the organization of data

3. Which relationship exists between occurrences of the same entity types?

A) Unary
B) Cardinality
C) Binary
D) Modality

4. Which optional clause is used to reject inserts and updates that do not satisfy the WHERE clause of a view query?

A) WITH CHECK OPTION
B) JOIN VIEWS
C) MATERIALIZED VIEW
D) BASE TABLE

5. What is the role of a query processor in the database system architecture?

A) It uses information from the catalog to perform query optimization.
B) It translates instructions into file system commands.
C) It writes log records before applying changes to the database.
D) It sends results back to the application that requested the queries.

Solutions: