DAC Data Visualization & Reporting 5

Question 1

What is the primary advantage of a treemap over a bar chart?

Accepted Answer

It shows hierarchical part-to-whole relationships in limited space

Answer

Treemaps efficiently display hierarchical part-to-whole data using nested rectangles sized by value.

Question 2

In a report, what does 'single source of truth' mean?

Accepted Answer

All reports draw from one consistent, governed dataset

Answer

A single source of truth ensures all reports use the same consistent, governed data.

Question 3

Which visualization is most appropriate for showing geographic sales distribution?

Accepted Answer

Choropleth map

Answer

A choropleth map shades geographic regions by value, ideal for spatial distribution.

Question 4

What is the purpose of a histogram?

Accepted Answer

To show the frequency distribution of a continuous variable

Answer

A histogram groups continuous data into bins to show its frequency distribution.

Question 5

Why is consistent formatting (fonts, colors, number formats) important across a report suite?

Accepted Answer

It builds trust and reduces misinterpretation

Answer

Consistent formatting builds credibility and helps readers interpret data correctly across reports.

Data Analytics Certifications (DAC) Practice Test