Question library
Questions from real interviews. Drill any of them by voice in a couple of minutes, with an interviewer, a score and feedback.
Design uploading and processing of user photos: a user uploads an image, the service generates thumbnails in several sizes and shows them in a feed.Mid-levelСпроектируйте облачное хранилище файлов вроде Яндекс Диска с синхронизацией: пользователь кладёт папку на ноутбуке, и она появляется на телефоне. Как устроить загрузку, хранение и синхронизацию?Mid-levelDesign a service for uploading and storing user files up to several gigabytes in size, for example videos.Senior