Inadequate Testing: Testing microservices can be much more challenging than?

Short answer: testing monolithic applications, as there are more moving parts. Without a proper testing strategy for each service, it's easy to overlook edge cases and service interactions.

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.