DA0-002 Data Concepts and Environments Practice Question
An organization wants to assign responsibility for data quality and metadata management. Which role is primarily accountable for defining data standards and ensuring data quality across a specific domain?
⚠ Common exam trap
It's easy for candidates to confuse the data steward with the data owner or data custodian, as many candidates mistakenly think the owner handles domain-level quality or that the custodian defines standards, when in fact the steward is the bridge between business requirements and technical enforcement.
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 steward
The data steward is the role primarily accountable for defining data standards and ensuring data quality within a specific domain. This aligns with the DAMA-DMBOK framework, where the data steward acts as the business-side owner of data content, establishing rules for data entry, validation, and metadata management to maintain consistency and accuracy.
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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Data analyst
Why it's wrong here
An analyst interprets and queries data to produce insight, holding no accountability for standards or quality. It is tempting because analysts work closely with data and often spot defects, and would be correct when the task is reporting, visualisation or exploratory analysis rather than governance.
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Data owner
Why it's wrong here
A data owner holds business accountability for a domain, but the question asks who defines standards and ensures quality — the steward's operational remit. Data owner is tempting because it sounds like the accountable role, and would be correct when strategic ownership decisions, not day-to-day quality enforcement, are required.
- ✓
Data steward
Why this is correct
The data steward is accountable within a domain for defining data standards, documenting metadata and monitoring quality. This domain-focused accountability role matches the requirement, unlike executive owners or technical administrators who lack that stewardship mandate.
- ✗
Data custodian
Why it's wrong here
A custodian implements technical controls such as backups, access and storage, rather than defining standards or owning quality. It is tempting because custodians handle data daily, and would be correct when the question concerns operational safeguarding and infrastructure-level protection of data assets.
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Senior Network & Security Engineer · founder of Courseiva
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