- A
Bubble chart
Bubble charts are scatter plots with a third variable; they also show correlation.
- B
Scatter plot
Scatter plots directly show correlation.
- C
Pie chart
Why wrong: Pie charts show proportions, not correlation.
- D
Waterfall chart
Why wrong: Waterfall charts show incremental changes.
- E
Histogram
Why wrong: Histograms show distribution of a single variable.
Question 737 of 1,000
DA0-001 Visualising Data Practice Question
This DA0-001 practice question tests your understanding of visualising data. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An analyst is choosing a chart to show the correlation between two continuous variables. Which TWO chart types could be used? (Select two.)
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
✓
Bubble chart
A bubble chart is an extension of a scatter plot that can show the correlation between two continuous variables on the x- and y-axes, while a third variable is represented by the size of the bubbles. For the specific purpose of showing correlation between exactly two continuous variables, the bubble chart is valid because the bubble size is optional and does not interfere with the primary x-y relationship. This makes it a correct choice for visualizing the relationship between two continuous variables.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Bubble chart
Why this is correct
Bubble charts are scatter plots with a third variable; they also show correlation.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Scatter plot
Why this is correct
Scatter plots directly show correlation.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Pie chart
Why it's wrong here
Pie charts show proportions, not correlation.
- ✗
Waterfall chart
Why it's wrong here
Waterfall charts show incremental changes.
- ✗
Histogram
Why it's wrong here
Histograms show distribution of a single variable.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that a histogram can show relationships between two variables, but it only displays the frequency distribution of a single continuous variable, making it a common distractor for candidates who confuse it with a bar chart or scatter plot.
Trap categories for this question
Command / output trap
Pie charts show proportions, not correlation.
Detailed technical explanation
How to think about this question
Under the hood, both scatter plots and bubble charts rely on Cartesian coordinates to map each data point's x and y values, allowing visual inspection of patterns such as linear, logarithmic, or no correlation. In a bubble chart, the third dimension (bubble area) is scaled proportionally to a third variable, but the core x-y relationship remains the primary focus. A real-world scenario is in finance, where an analyst might plot stock returns (x) against volatility (y) with market cap as bubble size, but the correlation between returns and volatility is still assessed from the x-y positions.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the DA0-001 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this DA0-001 question test?
Visualising Data — This question tests Visualising Data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Bubble chart — A bubble chart is an extension of a scatter plot that can show the correlation between two continuous variables on the x- and y-axes, while a third variable is represented by the size of the bubbles. For the specific purpose of showing correlation between exactly two continuous variables, the bubble chart is valid because the bubble size is optional and does not interfere with the primary x-y relationship. This makes it a correct choice for visualizing the relationship between two continuous variables.
What should I do if I get this DA0-001 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
This DA0-001 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 DA0-001 exam.
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