How do you design a global-scale application?

Short answer: Strong Answer Architecture: Frontend → CDN Backend → Multi-region App Service DB → Geo-replicated Azure SQL Traffic → Azure Front Door Real-world Example: Netflix-like system: Users routed to nearest region Reduces latency Advanced insight: Use read replicas Handle data consistency carefully

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.