Service Prioritization: Reject less important requests (e.g., background tasks) while ensuring critical services (e.g., user login) are not impacted. Example: In a Shopping Cart Service, if the system is experiencing high traffic during a flash sale, low-priority operations (e.g., notifications) might be shed, but order submissions

Short answer: re prioritized. Service Discovery & Load Balancing

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.