Question library
Questions from real interviews. Drill any of them by voice in a couple of minutes, with an interviewer, a score and feedback.
What classes of HTTP response codes do you know, and which specific codes does a backend return most often?JuniorWhat's the difference between the HTTP methods GET, POST, PUT, PATCH and DELETE? And what does it mean for a method to be idempotent?JuniorA client sends a POST request to create a payment, the response never arrives because of a timeout, and the client retries the request. How do you make sure the money isn't charged twice?Mid-levelЧем HTTP/2 отличается от HTTP/1.1 на уровне того, как байты идут по соединению? Какую проблему он решил, какую оставил, и при чём тут HTTP/3?Mid-level