Service Discovery and Management:?

Short answer: As the number of services increases, managing them becomes harder. Mitigation: Use Kubernetes or Istio for service discovery, orchestration, and monitoring. Monitoring, Logging, and Tracing

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.