DA0-002 Visualization and Reporting Practice Question
A company needs to visualize the trend of monthly sales revenue over the past two years. Which chart type is most appropriate?
⚠ Common exam trap
A common mix-up: candidates confuse the purpose of different chart types: candidates might select a bar chart because it also shows time on the x-axis, but the question emphasizes 'trend,' which is best represented by a line chart.
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
✓
Line chart
A line chart is the most appropriate for visualizing the trend of monthly sales revenue over time because it plots data points connected by lines, clearly showing the direction and pattern of change across a continuous time series. The x-axis represents time (months), and the y-axis represents revenue, allowing for easy identification of upward or downward trends, seasonality, and fluctuations. Unlike other chart types, line charts are specifically designed to highlight trends and changes over intervals.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Bar chart
Why it's wrong here
A bar chart plots discrete categories, so 24 monthly bars obscure the continuous trend line the question asks for; a line chart connects successive points to show direction. It is tempting because bars do display monthly values clearly, which suits comparing categories rather than tracking change over time.
- ✗
Scatter plot
Why it's wrong here
A scatter plot shows correlation between two numeric variables, so it cannot represent revenue against sequential months as a trend. It is tempting because scatter plots reveal relationships between paired measurements, which is the scenario where a scatter plot would be correct.
- ✓
Line chart
Why this is correct
A line chart plots revenue against a continuous time axis, so the two-year monthly trend and its direction are read directly from the connecting segments. Categorical charts such as bar or pie cannot show temporal continuity or rate of change as clearly.
- ✗
Pie chart
Why it's wrong here
A pie chart encodes parts of a single whole, so it cannot plot revenue values across 24 sequential months; time-series trends need a continuous axis. It is tempting for showing each month's share of annual revenue, which is the scenario where a pie chart would be correct.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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.