What is the difference between Azure Functions and Web API?

Short answer: Strong Answer: Feature Azure Function Web API Execution Event-driven Request-drive Scaling Auto Manual/Auto Use case Background jobs Business APIs Real-world Example: API → user requests Function → email sending

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.