Question library
Questions from real interviews. Drill any of them by voice in a couple of minutes, with an interviewer, a score and feedback.
A service saves an order to the database and then publishes an "order created" event to a message broker. What problems can come up here, and how do you solve them?Mid-levelAfter writing an order to the database, a service has to publish an event to a message broker. How do you guarantee the event isn't lost and that redelivering it doesn't duplicate the effect?Senior