CompTIA ITF+ (FC0-U61) — Question 223

Which of the following are database constraints? (Choose two.)

Answer options

• A. Column
• B. Row
• C. Not null
• D. Primary key
• E. Field
• F. Table

Correct answer: C, D

Explanation

The correct answers are C (Not null) and D (Primary key) because they are both constraints that enforce rules on the data in a database. Options A (Column), B (Row), E (Field), and F (Table) refer to structural elements of a database rather than constraints.