Service Mesh:?

Short answer: Deploy a Service Mesh (e.g., Istio, Linkerd) to handle secure communication between microservices. It automates mTLS (mutual TLS) encryption, and centralizes security, monitoring, and traffic management.

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.