Decoupling Services: Services can react to events from other services, ensuring?

Short answer: that the architecture remains loosely coupled and scalable. Example: In an E-commerce system, instead of updating an "Order" record in the database, you store each event like OrderCreated, PaymentProcessed, etc., and replay these events to determine the current state of the order. Microservices Deployment & CI/CD

Real-world example (ShopNest)

After payment succeeds, ShopNest publishes OrderPaid. Inventory and Notification services react independently—no giant distributed transaction.

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.