External Load Balancers:?

Short answer: For services that need to be exposed outside the cluster, external load balancers (e.g., AWS ELB or Azure Load Balancer) can balance traffic to the Kubernetes ingress or service endpoints.

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.