React Native | Fresco Play

Question 1: It is compulsory to install Xcode or Android studio for react native mobile application development.

Answer: False

Question 2: Developer of React Native is _______________.

Answer: Facebook

Question 3: React Native is ‘learn once, run anywhere’.

Answer: False

Question 4: JSX is JavaScript with a syntax extension which allows a mixture between _______________ and ___________.

Answer: JavaScript and XML tags

Question 5: Which method is called when a component is being removed from the DOM?

Answer: componentWillUnmount()

Question 6: AppRegistry is the JavaScript exit point to run all React Native apps.

Answer: False

Question 7: Please select the one which is not a React Native UI Component.

Answer: Switch

Question 8: _______________ are the building blocks for a React Native application.

Answer: Components

Question 9: The application file for Android is .apk extension and for iOS is _______________ extension.

Answer: ipa

Question 10: Which of the following properties Flex box Layout has?

Answer: all of the above

Question 11: With React Native,you just style your application using _______________ -

Answer: Javascript

Question 12: _______________ is a component that enable navigation between different screens in the applications.

Answer: Navigator

Question 13: How do you create a new React Native project?

Answer: react-native init

Question 14: _______________ is an architectural pattern that enforces unidirectional data flow.

Answer: view

Question 15: You can use any CSS in the styles of the React Native StyleSheet object.

Answer: True

Question 16: AppRegistry is the JavaScript entry point for running all React Native apps.

Answer: True

Question 17: By writing CSS in JavaScript, you are isolating styles from _______________.

Answer: Global namespace

Question 18: The _______________ file defines some metadata for our project and, most importantly, declares react-native as a dependency of our own project

Answer: package.json

Question 19: In React Native, Geolocation API is available through the _______________ global, so you do not need to import it.

Answer: navigator.geolocation

Question 20: ______________ captures user touch events.

Answer: touchablehighlightd

Question 21: FormsModule is imported from @angular/_______ in Model Driven Form.

Answer: none of these

Question 22: React Native is like other Hybrid Apps which are actually slower than Native mobile apps.

Answer: False

Question 23: In Reactive forms, the HTML of the forms are automatically created.

Answer: False

Question 24: React Native supports DOM and Virtual DOM concept.

Answer: False

Question 25: What type of data does a ListView take?

Answer: data source

Question 26: Which method retrieves automatic updates about the current location of the device?

Answer: watch position

Question 27: One of the benefits of React Native vs. Native Development is that React Native has the live reload ability

Answer: True

Question 28: Live Reloading and Hot Loading is present in React Native Developer Tools.

Answer: true

Question 29: For networking needs, React Native framework provides the fetch API.

Answer: true

Question 30: Which command you have to run for installing React Native?

Answer: npm install -g react-native-cli

Question 31: To build an iOS app, you need a Mac OS and to build an android app you want ____________

Answer: any

Question 32: _______________ captures user touch events.

Answer: TouchableHighlight

Question 33: Which command you have to run for installing React Native?

Answer: npm install -g create-react-native-app

Question 34: React Native supports DOM and Virtual DOM concept.

Answer: False

Question 35: The _______________ file defines some metadata for our project and, most importantly, declares react-native as a dependency of our own project

Answer: package.json

Question 36: By writing CSS in JavaScript, you are isolating styles from _______________.

Answer: Global namespace

Question 37: AppRegistry is the JavaScript entry point for running all React Native apps.

Answer: True

Question 38: _______________ is an architectural pattern that enforces unidirectional data flow.

Answer: Flex

Question 39: What is the main difference between React and React Native?

Answer: ReactJS is a Library where react native is a framework.

Question 40: React Native is not having third-party plugin compatibility.

Answer: False

Question 41: Which Objective C file can be used to switch the React Native bundle location in bundle.cc?

Answer: Appdelegate.m

Question 42: React Native is ‘learn once, write anywhere’.

Answer: True

Question 43: Which of the following is not a React Native API?

Answer: Modal