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How would you test multi-device data sync?
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Scenario
Your interview prompt
A notes app lets users edit the same note on phone, tablet, and web. Changes sync near real time, offline edits are queued, and conflicts should be resolved without silent data loss.
List flows, risks, edge cases, data conditions, UX, security, API/backend, and performance concerns.
Tip: a stronger answer usually mixes happy path, negative cases, state changes, data, backend, UX, accessibility, and risk.
How to structure your answer
Happy pathNegative casesData rulesSecurity/API risksUX/performance