What are the benefits of following DIP?

Short answer: ✅ Key Benefits: Decouples components — changes in low-level modules won’t affect high-level ones Improves testability — you can easily inject mocks/stubs Enhances flexibility — swap implementations without touching core logic Promotes reuse — abstractions can be used across different modules Supports SOLID architecture — especially when combined with DI and IoC containers Advanced & Scenario-Based Questions

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.