DA0-002 Visualization and Reporting Practice Question
A data analyst notices that the sales numbers in a report differ from the numbers in the finance department's spreadsheet. This discrepancy is most likely due to a lack of:
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
✓
Single version of truth
A single version of truth means all departments use the same centralized data, avoiding inconsistencies.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Row-level security
Why it's wrong here
Row-level security restricts which rows a user can query; it filters access rather than explaining why two teams' totals diverge. It is the correct choice when users must see only their own region's or department's records within a shared dataset.
- ✗
Data lineage
Why it's wrong here
Data lineage records the origin and transformation path of data, which supports impact analysis and audit trails rather than reconciling two figures. It would be the right answer when tracing which upstream source or transformation produced a value.
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Data dictionary
Why it's wrong here
A data dictionary documents field definitions and metadata; it does not reconcile conflicting figures between two sources. The discrepancy stems from differing extraction logic or transformation, not undefined column meanings. It would be the right choice when analysts misinterpret field names or value formats, such as confusing gross and net revenue across teams.
- ✓
Single version of truth
Why this is correct
Differing sales figures arise when each department maintains its own copy of data, so definitions and refresh timings diverge. A single version of truth establishes one governed, authoritative source that all reports and spreadsheets reference, eliminating the reconciliation discrepancy.
About these practice questions
Courseiva writes every DA0-002 question from scratch — 1,004 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.