URL Path Versioning:?

Short answer: Version the API via the URL, for example, /v1/orders and /v2/orders. Example: for version 1, and

Example code

for version 2.

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.