CBDA Data Visualization & Communication 2

Question 1

Which of the following BEST describes an executive dashboard in the context of business data analytics?

Accepted Answer

A high-level summary of KPIs enabling quick strategic decisions

Answer

A detailed data dictionary for the IT team

Answer

A full transactional database export

Answer

A technical schema diagram

Question 2

When a CBDA analyst uses 'small multiples,' they are applying which visualization technique?

Accepted Answer

Creating several small charts with the same scale to compare across a variable

Answer

Displaying one large chart with all categories combined

Answer

Using footnotes to explain each data point

Answer

Filtering a chart to show only the top 5 results

Question 3

Which of the following is a key principle of effective data storytelling for business analysts?

Accepted Answer

Lead with a clear insight and support it with evidence

Answer

Present all available data to let the audience draw their own conclusions

Answer

Avoid visuals and use only written summaries

Answer

Always start with methodology before showing results

Question 4

In a business report, what is the purpose of 'annotation' on a chart?

Accepted Answer

To highlight specific data points or trends with explanatory text

Answer

To increase the number of data points shown

Answer

To add decorative elements to improve aesthetics

Answer

To list the data source credentials

Question 5

A CBDA analyst notices that a bar chart misleads viewers by starting the Y-axis at 500 instead of 0. This is an example of which problem?

Accepted Answer

Truncated axis distortion

Answer

Overplotting

Answer

Outlier masking

Answer

Spaghetti chart complexity

Question 6

Which type of chart is BEST for displaying hierarchical data such as budget allocation broken down by department and then by project?

Accepted Answer

Treemap

Answer

Line chart

Answer

Box plot

Answer

Control chart