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WGU Data Management – Foundations Sample Questions:
1. Which characteristic is true for non-relational databases?
A) They store data in tables, columns, and rows, similar to a spreadsheet.
B) They support the SQL query language.
C) They are ideal for databases that require an accurate record of transactions.
D) They are optimized for big data.
2. Which clause is used to specify the join columns when performing a join in MySQL?
A) JOIN
B) AS
C) AND
D) ON
3. Which elements are represented by attributes in the database design documents?
A) Synonyms
B) Names
C) Relationships
D) Repositories
4. Which statement is associated with two separate entities?
A) Relationship
B) Attribute
C) Reflexive relationship
D) Entity type
5. What does the aggregate function do?
A) It selects rows that appear in one table but not another.
B) It lists combinations of rows in two tables.
C) It computes values over a set of rows.
D) It eliminates one or more columns of a table.
Solutions:
Question # 1 Answer: D | Question # 2 Answer: D | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: C |