Skill Builder Practice Courses
Free, hands-on practice courses with MCQs and instant explanations. Drill the topics interviewers ask, track gaps with the AI guide, walk in ready.
Practice-driven CFA Level 1 prep covering Ethics, Quantitative Methods, Economics, FRA, Corporate Issuers, Equity, Fixed Income, Derivatives, Alternatives, and Portfolio Management.
Learn Node.js from the ground up — event loop, async I/O, modules, npm, Express, streams, and production-ready backend skills.
Master the behavioral design patterns every senior engineer is expected to know — Observer, Strategy, Command, State, and more.
Master advanced React with 1,300+ free practice MCQs — memoization, custom hooks, compound components, Suspense, Concurrent React 18, Server Components, and the patterns senior interviews probe. Instant explanations after every wrong answer.
Learn React online with 1,500+ free practice MCQs — from JSX and components through state, effects, forms, refs, context, and error boundaries. Instant explanations after every wrong answer.
Master the fundamentals of C++ with hands-on practice covering syntax, OOP, memory management, and the STL.
Practice quantitative aptitude online with 3,000+ free MCQs — from number systems and percentages through time-speed-distance, algebra, geometry and probability. Instant explanations after every wrong answer. Built for placements, CAT, banking and SSC.
Learn Python online with 3,400+ free practice MCQs — from variables and control flow through OOP, concurrency, memory, performance, and interview traps. Instant explanations after every wrong answer.