DA0-002 Visualization and Reporting Practice Question
A company's sales report shows revenue of $1.2M, but the calculation method is unclear. What data governance artifact would clarify the definition?
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 dictionary
A data dictionary provides clear definitions, calculations, and sources for metrics.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Audit trail
Why it's wrong here
An audit trail records who accessed or changed data and when; it evidences activity, not calculation logic. It would be correct for forensic review or compliance evidence, but it cannot explain how the $1.2M figure was derived.
- ✓
Data dictionary
Why this is correct
A data dictionary documents each field's precise definition, calculation logic and derivation rules, so the revenue figure's ambiguous method becomes explicit and consistently reproducible. It satisfies the need for a governance artifact that clarifies how a metric is defined.
- ✗
Row-level security
Why it's wrong here
Row-level security filters which records a user may query; it governs access, not meaning. It would be correct when restricting regional managers to their own territory's rows, but it cannot define how revenue is calculated.
- ✗
Data lineage
Why it's wrong here
Data lineage traces the origin and transformation path of data, showing where values came from, not the business definition of a metric. It suits impact analysis or root-cause tracing of a pipeline defect, not clarifying what revenue means.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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