What is service discovery, and why is it important in microservices?

Short answer: Service Discovery is the process of automatically detecting the network locations of services in a microservices architecture.

Explain a bit more

As services in a microservices-based application are dynamic (e.g., containers that can scale in and out), hardcoding service addresses (IPs or URLs) is impractical. Service discovery ensures that microservices can dynamically find and communicate with each other in a reliable and efficient way. Why it's important:

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.