FC0-U71 Data and Database Fundamentals Practice Question
A developer modifies a database and wants to ensure that every value in a column meets a specific condition, such as age must be between 0 and 120. Which type of integrity constraint should be used?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Domain integrity
Domain integrity ensures that data falls within a valid range or set of values, often enforced with CHECK constraints.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Referential integrity
Why it's wrong here
Referential integrity ensures foreign keys match primary keys.
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Domain integrity
Why this is correct
Correct. Domain integrity enforces valid data values for columns.
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User-defined integrity
Why it's wrong here
This is a general term, not specific to column value ranges.
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Entity integrity
Why it's wrong here
Entity integrity ensures primary keys are unique and not null.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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