Data Visualization Dashboard Design 2 — Questions and Answers
Question 1: What is 'drill-down' functionality in a dashboard?
- Exporting data to CSV
- Clicking on a summary metric to explore more granular underlying data (Correct answer)
- Filtering data by date range
- Comparing multiple dashboards side by side
Correct answer: Clicking on a summary metric to explore more granular underlying data
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?
- Filter all data by date automatically
- Allow one visualization to filter data displayed in another when a user clicks or selects (Correct answer)
- Remove outliers from all charts
- Synchronize scroll position across charts
Correct answer: Allow one visualization to filter data displayed in another when a user clicks or selects
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?
- 3–4
- 5–9 (Correct answer)
- 10–15
- 20+
Correct answer: 5–9
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?
- Reducing file size
- Creating visual separation between elements to reduce cognitive load (Correct answer)
- Indicating missing data
- Saving space for future charts
Correct answer: Creating visual separation between elements to reduce cognitive load
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?
- Analytical dashboard
- Strategic/executive dashboard (Correct answer)
- Operational dashboard
- Tactical dashboard
Correct answer: Strategic/executive dashboard
Strategic or executive dashboards summarize high-level KPIs and progress toward long-term organizational goals for leadership audiences.
Question 6: What is meant by 'responsive dashboard design'?
- Dashboards that refresh data quickly
- Dashboards that adapt their layout and chart size to different screen sizes (Correct answer)
- Dashboards that respond to voice commands
- Dashboards with real-time data connections
Correct answer: Dashboards that adapt their layout and chart size to different screen sizes
Responsive design ensures dashboards render appropriately on desktops, tablets, and mobile devices by adapting layout and chart dimensions.
Data Visualization Dashboard Design 2
What is 'drill-down' functionality in a dashboard?