React Interview Mock
A 450-question bank weighted toward advanced and tricky questions, served as 40-question, 60-minute mocks: JSX and components, rendering and reconciliation, state updates and batching, effects, advanced hooks, performance, concurrent rendering and Suspense, state management, React 19 Server Components and actions, and patterns and testing. Every option explains its reasoning.
Syllabus
4 domains · 10 skills, weighted like the official blueprint.
1Components and Rendering20% of the exam · 2 skillsMastery—
2State and Hooks32% of the exam · 3 skillsMastery—
3Performance and Concurrency20% of the exam · 2 skillsMastery—
4Architecture and Modern React28% of the exam · 3 skillsMastery—
Sample questions with answers
10 questions from the REACT bank, with an explanation for every option. No sign-up needed.
Questions about this exam
How many questions are in a full React Interview Mock, and how long is it?
40 questions in 60 minutes. Each mock draws questions from every domain in proportion to its weight, so the mix matches the blueprint.
What score do you need to pass it?
Results are reported from 0 to 100, and 70 is the passing score used in these mocks. Harder questions carry more weight.
What does the React Interview Mock cover?
4 domains: Components and Rendering (20%), State and Hooks (32%), Performance and Concurrency (20%) and Architecture and Modern React (28%).
How can I practise for it?
Start with the free 15-question diagnostic to find your weak spots, drill any skill with an explanation after every answer, retry your mistakes with spaced review, then sit timed full mocks.
How is my readiness score worked out?
It weighs your recent answers on each skill by difficulty, combines the skills by their exam weight into a predicted score, and reports your chance of reaching the pass mark. How scoring works