DA0-002 Visualization and Reporting Practice Question
A data analyst wants to visualize the monthly sales trend for the past year. Which chart type is most appropriate?
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
Line charts are best for showing trends over time.
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 compares discrete categories using separate bars, so the continuous month-to-month trend across the year is not shown as a connected progression. It is tempting because it displays monthly values clearly, and it would be correct for comparing total sales per region.
- ✗
Pie chart
Why it's wrong here
A pie chart shows parts of a whole at one point in time, so it cannot plot a value across twelve consecutive months. It is tempting because it displays proportions clearly, and it would be correct for showing each month's share of annual sales.
- ✓
Line chart
Why this is correct
A line chart plots a continuous metric against a time axis, making month-to-month sales movement and trend direction immediately visible across the twelve periods. Categorical charts such as bar or pie cannot show the temporal progression the analyst needs.
- ✗
Scatter plot
Why it's wrong here
A scatter plot shows correlation between two numeric variables, not a value changing over sequential time periods. It is tempting because it plots points on axes, and it would be correct for testing whether advertising spend correlates with sales revenue.
Go deeper
Related to this question
About these practice questions
One of 1,004 original DA0-002 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.