What is the role of orchestration in microservices (e.g., Kubernetes, Docker Swarm)?

Short answer: Orchestration in microservices refers to the automated management of containers (e.g., Docker containers) across a cluster of machines.

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.