Reduced Client-Side Complexity:?

Short answer: Clients do not need to handle complex service-to-service communication (e.g., dealing with different endpoints or protocols). Example: The API Gateway can aggregate responses from multiple microservices and present them as a single response to the client.

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.