This DA0-001 practice question tests your understanding of comparing and contrasting data concepts. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which THREE of the following are valid data quality dimensions? (Choose THREE.)
Encryption
Why wrong: Encryption is a security measure.
Redundancy
Why wrong: Redundancy is about storage efficiency, not quality.
Completeness
Completeness is a data quality dimension.
Timeliness
Timeliness is a data quality dimension.
Accuracy
Accuracy is a data quality dimension.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Completeness
Completeness is a core data quality dimension that measures whether all required data is present. In the context of the DA0-001 exam, completeness ensures that no fields or records are missing, which is fundamental for reliable analysis and reporting.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Encryption
Why it's wrong here
Encryption is a security measure.
Redundancy
Why it's wrong here
Redundancy is about storage efficiency, not quality.
Completeness
Why this is correct
Completeness is a data quality dimension.
Related concept
Read the scenario before looking for a memorised answer.
Timeliness
Why this is correct
Timeliness is a data quality dimension.
Related concept
Read the scenario before looking for a memorised answer.
Accuracy
Why this is correct
Accuracy is a data quality dimension.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
CompTIA often tests the distinction between data quality dimensions and data management techniques, so candidates may mistakenly select encryption or redundancy because they sound like important data concepts, but they are not part of the standard quality dimensions.
Detailed technical explanation
Data quality dimensions are defined by frameworks such as DAMA-DMBOK and ISO 8000. Completeness checks for missing values at the attribute or record level, often using SQL COUNT and NULL checks. Timeliness evaluates whether data is current enough for its intended use, while accuracy measures the correctness of data values against a verified source.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the DA0-001 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Comparing and Contrasting Data Concepts — This question tests Comparing and Contrasting Data Concepts — Read the scenario before looking for a memorised answer..
The correct answer is: Completeness — Completeness is a core data quality dimension that measures whether all required data is present. In the context of the DA0-001 exam, completeness ensures that no fields or records are missing, which is fundamental for reliable analysis and reporting.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This DA0-001 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 DA0-001 exam.
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