Code Room
System designMediumsd-p100
Subject Data modelingLevel Mid–Senior~45 minCommon in Databases & SQL interviewsIndustries IT services, Technology

Question

Design a customer-support ticketing system: customers submit tickets through multiple channels, tickets are routed to agents, and SLAs are tracked.

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.

Narrate your design
Loading whiteboard…
Run or narrate your approach, then ask the coach.