Data Visualization Dashboard Design 2

Question 1

What is 'drill-down' functionality in a dashboard?

Accepted Answer

Clicking on a summary metric to explore more granular underlying data

Answer

Drill-down allows users to click on a high-level summary and navigate to progressively more detailed data views.

Question 2

In Tableau, what is the purpose of a 'filter action' between dashboard sheets?

Accepted Answer

Allow one visualization to filter data displayed in another when a user clicks or selects

Answer

Filter actions in Tableau enable interactive cross-filtering: selecting a data point in one chart updates the data shown in connected charts.

Question 3

What is the recommended maximum number of charts on a single dashboard screen before usability declines?

Accepted Answer

5–9

Answer

Best practices suggest 5–9 charts per dashboard screen to avoid cognitive overload while providing sufficient context.

Question 4

What is 'white space' (negative space) used for in dashboard design?

Accepted Answer

Creating visual separation between elements to reduce cognitive load

Answer

White space creates visual breathing room between dashboard elements, reducing clutter and helping users focus on individual components.

Question 5

Which type of dashboard is best suited for a C-suite executive who needs a high-level overview?

Accepted Answer

Strategic/executive dashboard

Answer

Strategic or executive dashboards summarize high-level KPIs and progress toward long-term organizational goals for leadership audiences.

Data Visualization Practice Test