Most interviews are just referrals then confirming the bias, even if you fail some questions, you are likely in. If you came from no where, they are not gonna like you unless you get all the questions right.

If you want to know if someone is good at your company in 3-4 interviews, it’s tough, the best they can do is ask these technical questions. Talk to you about your past work, ask you technical what ifs. Most dumb ass companies will ask you to do trick coding leet code crap.