DA0-002 Data Quality Practice Question
A data audit reveals that some numbers in the "Revenue" column were manually entered from PDF invoices. This introduces potential errors. Which data concept is being addressed?
⚠ Common exam trap
Candidates may see the mention of 'audit' and 'origin' and incorrectly choose data lineage. However, the key issue is the potential errors from manual entry, which is a data quality concern. The audit is identifying a quality problem, not tracing the data's path.
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
✓
Data quality
The scenario describes a data audit that identifies potential errors from manual data entry from PDF invoices. This directly relates to data quality, which assesses aspects like accuracy, completeness, and consistency. The audit is highlighting a quality concern (potential errors), not lineage tracking. Data lineage focuses on the origin and transformation of data, but the primary issue here is the risk of inaccuracies, making data quality the correct concept.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Data lineage
Why it's wrong here
Lineage documents where data originated and how it moved between systems; it explains the PDF source but does not address the transcription errors themselves. It is tempting because lineage traces the invoice-to-column path, and it would be correct when auditing which upstream systems and transformations produced a reported figure.
- ✓
Data quality
Why this is correct
Manual transcription from PDF invoices introduces typographical and transcription errors, directly degrading accuracy, a core data quality dimension. Data quality addresses fitness for purpose, so the audit's concern with erroneous revenue figures maps to this concept.
- ✗
Data security
Why it's wrong here
Security protects data from unauthorised access, disclosure or tampering; manual transcription from PDFs introduces accidental errors, not a breach. It is tempting because security programmes also cover integrity, and it would be correct if invoice figures were being altered or exposed to people without clearance.
- ✗
Data governance
Why it's wrong here
Governance covers policies, ownership and standards for data assets, not the accuracy of individual manually transcribed values. It is tempting because governance frameworks do address data quality controls, and it would be correct when defining who owns the Revenue column and which validation rules apply.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.