DA0-002 Data Governance Practice Question
A data analyst wants to compare the sales performance of four different stores over the same time period. Which chart type is most suitable?
⚠ Common exam trap
Test-takers frequently choose a line chart (Option A) because they associate 'time period' with trend analysis, but the question explicitly asks to compare sales performance over the same time period, not to show changes over time, making the grouped bar chart the correct choice for direct comparison of discrete entities.
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
✓
Grouped bar chart
A grouped bar chart is the most suitable choice because it allows direct comparison of discrete categories (four stores) across a common time period, with each group representing a time interval and individual bars representing each store's sales. This chart type excels at side-by-side comparisons of multiple entities over the same categorical axis, making it ideal for the analyst's goal.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Line chart with multiple lines
Why it's wrong here
Multiple lines can be confusing if many categories.
- ✓
Grouped bar chart
Why this is correct
Grouped bars allow side-by-side comparison of stores.
- ✗
Stacked bar chart
Why it's wrong here
Stacked bars show composition, not direct comparison.
- ✗
Pie chart with multiple pies
Why it's wrong here
Multiple pies are hard to compare.
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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.