80%
HTML Structure, semantics, forms, accessibility and SEO basics0/25 questions known
CSS Box model, specificity, Flexbox, Grid, responsive design0/25 questions known
JavaScript Scope, closures, this, prototypes, the event loop and async0/25 questions known
TypeScript Types, interfaces, generics, narrowing and utility types0/25 questions known
React Components, rendering, hooks, state management and performance0/27 questions known
Next.js App Router, server components, rendering strategies, caching0/23 questions known
Node.js Runtime, event loop, modules, streams, scaling and npm0/25 questions known
Express & REST APIs Middleware, routing, validation, errors, REST design, GraphQL0/25 questions known
Auth & Web Security Sessions, JWT, OAuth, hashing, OWASP Top 10, CORS, CSP0/25 questions known
SQL Joins, aggregation, window functions, indexes, transactions, normalisation0/29 questions known
MongoDB Documents, schema design, queries, aggregation, indexes0/26 questions known
Git & GitHub Commits, branches, merge vs rebase, undoing, team workflow0/27 questions known
Docker, CI/CD & Deployment Images, containers, Compose, pipelines, Nginx, AWS basics0/26 questions known
Testing Test pyramid, unit tests, mocking, React Testing Library, E2E0/23 questions known
System Design 28 interview questions0/28 questions known
DSA 28 interview questions0/28 questions known