--- title: "React Native: Cross-Platform Mobile Development" lang: "en" author: "Mohammad Abu Mattar" canonical: https://mkabumattar.com/post/react-native-mobile-quiz --- [Home](/)›[Quizzes](/quizzes)›[All Categories](/quizzes/categories)›[Mobile](/quizzes/categories/mobile) Quizzes [Prev in MobileFlutter: Cross-Platform Mobile Development](/quizzes/post/flutter-mobile-quiz) [Mobile](/quizzes/categories/mobile) # React Native: Cross-Platform Mobile Development [Mohammad Abu Mattar](/authors/mohammad-abu-mattar)20 QuestionsIntermediatePublished: 11 Mar 2026 [Markdown for AI(opens in a new tab)](/post/react-native-mobile-quiz/index.md "Open the plain-Markdown version of this page, for pasting into an AI tool") Series [Frontend Frameworks & Mobile](/series/frontend-frameworks--mobile)3/5 [PreviousVue.js Fundamentals: Reactive Components & Templates](/quizzes/post/vuejs-fundamentals-quiz)[NextAstro: Building Fast Web Experiences](/quizzes/post/astro-fundamentals-quiz) All posts in this series (5) Quizzes5 1. [React Fundamentals: Components, Hooks & State Management](/quizzes/post/react-fundamentals-quiz) 2. [Vue.js Fundamentals: Reactive Components & Templates](/quizzes/post/vuejs-fundamentals-quiz) 3. [React Native: Cross-Platform Mobile DevelopmentYou are here](/quizzes/post/react-native-mobile-quiz) 4. [Astro: Building Fast Web Experiences](/quizzes/post/astro-fundamentals-quiz) 5. [Flutter: Cross-Platform Mobile Development](/quizzes/post/flutter-mobile-quiz) ## React Native: Cross-Platform Mobile Development Up to 20 questions, shuffled on every run Quiz Configuration Enterto start Welcome to the React Native Mobile Development Quiz! Test your knowledge of building native iOS and Android apps using React Native. This quiz covers key concepts like components, navigation, state management, performance optimization, and deploying to app stores. Each question has a timer and explanations for the correct answers. Good luck! Answer key and explanations20 questions The quiz above draws 20 questions at random from these 30, so a second attempt will not be the same run. Everything in the pool is listed here. 1. What is React Native? AnswerA framework for building native iOS and Android apps using JavaScript and React 2. What is the React Native bridge? AnswerAn asynchronous communication layer between JavaScript and the native platform 3. What is FlatList? AnswerAn optimized component for rendering long lists via virtualization and recycling 4. What is React Navigation? AnswerA flexible navigation library supporting stack, tab, and drawer-based routing 5. What is Redux in React Native? AnswerA state management library using a centralized store, actions, and reducers 6. What is hot reload? AnswerA feature that injects updated code while preserving the current app state 7. What are React Native Hooks? AnswerFunctions used for managing state and side effects in functional components 8. What is a native module? AnswerA bridge to native iOS or Android code used to access specific platform APIs 9. What is Expo? AnswerA framework and set of tools that simplify development via managed services 10. What is StyleSheet in React Native? AnswerAn abstraction used to define styles as objects while generating optimized IDs 11. What is Flexbox in React Native? AnswerThe primary layout system used to arrange components using flexible containers 12. What is app store deployment? AnswerThe process of building, signing, and submitting apps to official marketplaces 13. What is OTA (Over-the-Air) update? AnswerA method to update the JavaScript bundle without a full app store resubmission 14. What is code splitting in React Native? AnswerThe technique of lazy loading components to reduce the initial bundle size 15. What is SectionList? AnswerA specialized list component designed for rendering data with section headers 16. What is the Pressable component? AnswerA modern core component for detecting and handling various touch interactions 17. What is useFocusEffect hook? AnswerA navigation hook used to run side effects whenever a screen becomes focused 18. What is TextInput in React Native? AnswerA core component used to capture user input with support for various keyboards 19. What is the Image component? AnswerA component for rendering local and remote images with various resize modes 20. What is AsyncStorage? AnswerAn asynchronous, unencrypted, key-value storage system for local data persistence 21. What is AppState in React Native? AnswerAn API that tracks whether the application is in the foreground or background 22. What is the Animated API? AnswerA library for creating fluid animations that can be offloaded to the native thread 23. What is SafeAreaView? AnswerA component that ensures content is rendered within the visible boundaries of a device 24. What is the StatusBar API? AnswerA module used to control the appearance and visibility of the device status bar 25. What is the Linking API? AnswerA module for interacting with both incoming and outgoing app links and URLs 26. What are Permissions in React Native? AnswerA mechanism for requesting access to sensitive device features like the camera 27. What is testing in React Native? AnswerThe use of frameworks like Jest and Detox to verify application logic and UI 28. What is the Metro bundler? AnswerThe default JavaScript bundler for React Native that manages assets and transforms 29. What is performance optimization in React Native? AnswerStrategies like memoization and the use of the native driver to improve responsiveness 30. What is the React Context API? 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