Online Exam Quiz

questionQuestion  1 to 30

Which command is used to run a React Native app on an Android emulator?

  • react-native run-ios
  • react-native start-android
  • react-native run-android
  • react-native start-ios
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What is the purpose of the react-native-vector-icons package?

  • To add vector icons to a React Native app
  • To handle navigation
  • To define styles for components
  • To manage state
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What is the purpose of the StyleSheet API in React Native?

  • To create reusable components
  • To define styles for components
  • To manage navigation
  • To handle asynchronous operations
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Which of the following languages is primarily used for React Native development?

  • Java
  • Python
  • JavaScript
  • C++
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What is the purpose of the react-native-webview package?

  • To add web views to a React Native app
  • To manage state
  • To define styles for components
  • To handle navigation
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Which React Native component is used to display a list of data?

  • ListView
  • ScrollView
  • FlatList
  • RecyclerView
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What is the purpose of the react-native-svg-transformer package?

  • To transform SVG files into React Native components
  • To manage state
  • To define styles for components
  • To handle navigation
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Which of the following is used to handle animations in React Native?

  • CSS animations
  • Animated API
  • TransitionGroup
  • All of the above
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What is the purpose of the react-native-reanimated package?

  • To handle animations
  • To manage state
  • To define styles for components
  • To handle navigation
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Which of the following is used to handle authentication in React Native?

  • Firebase Authentication
  • OAuth
  • JWT
  • All of the above
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Which of the following is used to navigate between different screens in a React Native app?

  • Navigator
  • Router
  • NavigatorIOS
  • Navigation
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What is the purpose of the setState() method in React Native?

  • To set the initial state of a component
  • To update the state of a component
  • To render a component
  • To define props for a component
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What is the purpose of the render() method in React Native?

  • To update the state of a component
  • To define the initial state of a component
  • To render the component's UI
  • To handle asynchronous operations
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Which of the following is used to handle file uploads in React Native?

  • react-native-fs
  • react-native-file-picker
  • react-native-document-picker
  • All of the above
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Which of the following is not a valid React Native component type?

  • Functional component
  • Class component
  • Pure component
  • Stateful component
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Which command is used to install a new React Native package using npm?

  • npm install react-native-package
  • npm add react-native-package
  • npm create react-native-package
  • npm install -g react-native-package
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Which of the following is used to handle user gestures in React Native?

  • Gestures API
  • PanResponder
  • GestureRecognizer
  • Touchable component
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What is the purpose of AsyncStorage in React Native?

  • To store data persistently
  • To handle asynchronous operations
  • To manage navigation
  • To define styles for components
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Which of the following is used to handle form validation in React Native?

  • Formik
  • Yup
  • react-native-form-validator
  • All of the above
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What is the purpose of the key prop in React Native?

  • To define unique identifiers for list items
  • To define the initial state of a component
  • To handle user input
  • To define styles for components
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Which of the following is used to handle geolocation in React Native?

  • react-native-geolocation
  • react-native-location
  • Geolocation API
  • All of the above
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What is the purpose of the react-native-splash-screen package?

  • To add splash screens to a React Native app
  • To manage state
  • To define styles for components
  • To handle navigation
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Which of the following is not a valid navigation type in React Native?

  • Stack navigation
  • Tab navigation
  • Grid navigation
  • Drawer navigation
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What is the purpose of the react-native-firebase package?

  • To add Firebase services to a React Native app
  • To manage state
  • To define styles for components
  • To handle navigation
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Which of the following is used to perform navigation in a React Native app?

  • react-router
  • react-navigation
  • react-native-router
  • react-native-navigation
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Which of the following is used to handle internationalization in React Native?

  • react-native-localization
  • i18n-js
  • react-intl
  • All of the above
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What is the purpose of the react-native-picker-select package?

  • To add select pickers to a React Native app
  • To manage state
  • To define styles for components
  • To handle navigation
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Which of the following is used to handle deep linking in React Native?

  • react-navigation
  • react-native-deep-linking
  • Linking API
  • All of the above
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Which of the following is used to handle network requests in React Native?

  • fetch API
  • XMLHttpRequest
  • axios
  • All of the above
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Which of the following is used to handle push notifications in React Native?

  • react-native-push-notification
  • react-native-notifications
  • react-native-push-notifications
  • All of the above
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