Full Stack Developer interview questions: the 8 to ask

1. 1.Describe a feature you shipped end to end.
2. 2.How do you design an API consumed by your own front end?
3. 3.How do you handle authentication between front and back?
4. 4.Where do you validate data, and why?
5. 5.How do you debug an issue that could come from either side?
6. 6.How do you choose between SQL and NoSQL?
7. 7.How do you deploy with zero downtime?
8. 8.Which side of the stack are you strongest on, and how do you compensate?

Tip: for every answer, ask for a concrete example (situation, action, result). An answer without an example is worth half.