Creates a merge commit if necessary (to record the combination).?

Short answer: Example: If you merge feature/login into main, Git finds the last point they shared code, applies your login branch changes, and creates a new commit that connects both histories. Intermediate / Advanced Git Concepts

Real-world example (ShopNest)

Feature work for “UPI payment” lives on feature/upi-payment. Open a PR to main; resolve conflicts before merge.

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.