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 is CI/CD, and what steps does a pipeline for a backend service usually consist of?JuniorAfter a deploy, some users keep seeing the old version of the SPA or get a blank white screen. How would you configure caching so this doesn't happen?Mid-levelYou need to rename a column in a large table, and the service deploys without downtime via rolling updates. How would you carry out this change?Mid-levelA Django monolith can no longer keep up with growing traffic. How would you design how it runs in production: the application server, the worker model, the number of workers, and working with the database?Mid-levelYou need to rename a column in a large table that a service is actively using under load, and do it with zero downtime. How would you run the migration and the deployment?Senior