DA0-002 Data Governance Practice Question
A data analyst is creating a dashboard for executives to show monthly sales trends over the past year. Which chart type is most appropriate?
⚠ Common exam trap
Many candidates confuse 'showing trends over time' with 'comparing parts of a whole' and incorrectly select a stacked bar chart or pie chart, failing to recognize that line charts are the standard for time-series trend visualization.
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 choice because it excels at showing continuous data trends over time, such as monthly sales over a year. The x-axis represents the time dimension (months), and the y-axis represents sales values, allowing executives to easily identify upward or downward trends, seasonality, and inflection points. This aligns with the goal of communicating data insights clearly and effectively.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Stacked bar chart
Why it's wrong here
Stacked bar charts compare multiple categories over time or groups, but are less clear for a single trend line.
- ✗
Scatter plot
Why it's wrong here
Scatter plots show relationships between two variables, not trends over time.
- ✓
Line chart
Why this is correct
Line charts effectively show trends over time, making them suitable for monthly sales data.
- ✗
Pie chart
Why it's wrong here
Pie charts are used to show proportions of a whole, not trends over time.
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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.