DA0-002 Data Concepts and Environments Practice Question
Which database concept ensures that data in one table corresponds to data in another table, preventing orphan records?
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
✓
Referential integrity
Referential integrity ensures that foreign key values match primary key values in the referenced table.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Index
Why it's wrong here
Indexes speed up queries but do not enforce relationships.
- ✓
Referential integrity
Why this is correct
Referential integrity is the constraint that maintains consistency between related tables.
- ✗
Foreign key
Why it's wrong here
Foreign key is the column that references another table; but referential integrity is the constraint.
- ✗
Primary key
Why it's wrong here
Primary key uniquely identifies a row but does not enforce relationships.
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Written by Johnson Ajibi, MSc IT Security
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This DA0-002 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DA0-002 exam.