DAC Data Visualization & Reporting 2

Question 1

Which chart type is most appropriate for showing the correlation between two continuous variables?

Accepted Answer

Scatter plot

Answer

Pie chart

Answer

Stacked bar chart

Answer

Donut chart

Question 2

A dashboard designer wants to reduce cognitive load. Which principle should guide the layout?

Accepted Answer

Follow a clear visual hierarchy

Answer

Add as many KPIs as possible

Answer

Use a different color for every element

Answer

Animate all charts continuously

Question 3

What is the primary risk of using a truncated y-axis (not starting at zero) on a bar chart?

Accepted Answer

It exaggerates differences between values

Answer

It saves space

Answer

It improves color contrast

Answer

It speeds up rendering

Question 4

In reporting, what does a 'drill-down' capability allow a user to do?

Accepted Answer

Navigate from summary data to more detailed data

Answer

Export the report to PDF

Answer

Change the color theme

Answer

Schedule email delivery

Question 5

Which color consideration is most important for accessibility in dashboards?

Accepted Answer

Ensuring sufficient contrast and colorblind-safe palettes

Answer

Using bright neon shades

Answer

Matching the company logo exactly

Answer

Using at least ten hues

Question 6

A KPI card on a dashboard should primarily display what?

Accepted Answer

A single key metric with context like a trend or target

Answer

A detailed table of raw records

Answer

A full narrative paragraph

Answer

Every dimension in the dataset

Question 7

Which of the following best describes a heat map?

Accepted Answer

A chart showing values as color intensity across a matrix

Answer

A line chart of temperature over time

Answer

A geographic map with pins

Answer

A pie chart split by percentage