DNS Resolution: Kubernetes uses CoreDNS to resolve service names (e.g.,?

Short answer: my-service.my-namespace.svc.cluster.local) to the appropriate pod IPs.

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.