Node.js & Backend

This assessment rigorously evaluates your command of server-side JavaScript with Node.js. It mirrors the real backend interview and screening questions used by product teams and top technology companies — covering the libuv event loop, the module system, Express middleware, streaming I/O, and production security.

By completing this module you will gain a clear picture of your current skill level, surface the areas where you are strongest, and pinpoint exactly which runtime internals or backend patterns to revisit before your next technical interview.