DA0-002 Visualization and Reporting Practice Question
A data analyst wants to compare the total sales of four different product categories for a single year. Which chart type is most appropriate for this comparison?
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
✓
Bar chart
A bar chart is ideal for comparing discrete categories because the length of each bar represents the total value, making it easy to see which category has the highest sales.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Pie chart
Why it's wrong here
Pie charts show part-to-whole relationships and are not ideal for comparing many categories.
- ✗
Scatter plot
Why it's wrong here
Scatter plots show relationships between two variables, not comparisons of categories.
- ✗
Line chart
Why it's wrong here
Line charts are used for trends over time, not for comparing categories.
- ✓
Bar chart
Why this is correct
Correct. Bar charts are best for comparing values across categories.
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Written by Johnson Ajibi, MSc IT Security
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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.