What is Azure App Service?

Short answer: Azure App Service is a fully managed PaaS platform for hosting web apps, REST APIs, and mobile backends. It handles infrastructure, scaling, security, and patching automatically.

Real-world example (ShopNest)

ShopNest’s API runs on Azure App Service with staging slots—swap staging to production after smoke tests.

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.