Ingress Controllers: ○ Ingress controllers provide HTTP and HTTPS load balancing, routing external traffic to the appropriate services within the Kubernetes cluster. ○ Popular ingress controllers like NGINX, Traefik, and HAProxy handle routing

Short answer: And load balancing across multiple service instances.

Real-world example (ShopNest)

ShopNest splits Catalog, Cart, Order, and Payment into services so teams can deploy catalog changes without redeploying payments.

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.