Vanity redirect manager
Design a vanity/redirect link manager for a company's marketing team — internal tool. Marketers create human-readable short paths like 'go.acme.com/spring-sale' that redirect to long campaign URLs, and they can edit where a path points later. There are at most a few hundred links and a few thousand redirects per day. Describe the data model and the redirect flow. (This is a managed-redirects tool, not a high-scale public shortener.)
What a strong answer looks like
Clarify scale and constraints first. Propose a clean component breakdown, then go deep on the hard parts (data model, bottlenecks, consistency, failure modes) and name the trade-offs you are making.
Clarify3:00 left
Estimate3:00 planned
Design8:30 planned
Deep dive6:30 planned
Failure4:00 planned
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.
Run or narrate your approach, then ask the coach.