Watch stakeholders try to use your dashboard. If they open it and immediately open a spreadsheet to do their own calculations, the dashboard is not answering their real questions.
Strong answers show user-centred thinking applied to internal tools: observing how stakeholders actually used (or did not use) the dashboard, gathering feedback, simplifying the design, adding context and actionability, and measuring adoption. Best candidates treat dashboard design as a product problem, not a technical one.
Reveals whether the analyst thinks about their audience. Dashboards that nobody uses are waste. Analysts who iterate based on stakeholder feedback create tools that drive decisions.