Security: ○ The API Gateway acts as the first line of defense by enforcing?

Short answer: uthentication and authorization policies, and can block or redirect suspicious traffic. Example: Enforce OAuth 2.0 for authentication and RBAC for authorization t the gateway level.

Real-world example (ShopNest)

ShopNest’s API Gateway routes /orders to the Order service and /payments to Payment—clients talk to one entry point.

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.