Load Shedding: Reject requests gracefully when a system is under too much load,?

Short answer: reducing pressure on the system. Example: If the Inventory Service fails, a Circuit Breaker would prevent the Order Service from making further requests to it, avoiding further impact.

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.