Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.

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

Answer»

JSX is JavaScript with a syntax extension which allows a mixture between _______________ and ___________.
Choose the correct OPTION from below LIST
(1)JavaScript and XML tags
(2)JAVA and Xml Extensions
(3)JavaScript Extensions
(4)JavaScript and Extension

Answer:-(1)JavaScript and XML tags

2.

In Reactive forms, the HTML of the forms are automatically created.

Answer»

In Reactive FORMS, the HTML of the forms are AUTOMATICALLY created.
Choose the CORRECT option from below list
(1)False
(2)True

Answer:-(1)False

3.

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

Answer»

By WRITING CSS in JavaScript, you are isolating styles from _______________.
Choose the correct option from below list
(1)code
(2)package
(3)global namespace
(4)CURRENT class

Answer:-(3)global namespace

4.

React Native is like other Hybrid Apps that are actually slower than Native mobile apps.

Answer»

React Native is like other Hybrid Apps that are actually SLOWER than Native MOBILE apps.
Choose the CORRECT option from below LIST
(1)True
(2)False

Answer:-(2)False

5.

React Native does not have third-party plugin compatibility.

Answer»

React NATIVE does not have third-party PLUGIN compatibility.
Choose the CORRECT option from below LIST
(1)False
(2)True

Answer:-(1)False

6.

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

Answer»

One of the benefits of React Native vs. Native Development is that React Native has the LIVE reload ability.
Choose the correct option from below LIST
(1)True
(2)False

Answer:-(1)True

7.

Which of the following option is not a React Native API?

Answer»

Which of the FOLLOWING option is not a React NATIVE API?
Choose the correct option from below list
(1)Settings
(2)CameraRoll
(3)MODAL
(4)Geolocation

Answer:-(3)Modal

8.

React Native is known as "learn once, write anywhere".

Answer» REACT Native is KNOWN as "learn once, write ANYWHERE".
Choose the correct OPTION from below list
(1)True
(2)False

Answer:-(1)True
9.

Which of the following properties does the Flexbox Layout have?

Answer»

Which of the following PROPERTIES does the Flexbox Layout have?
Choose the CORRECT option from below LIST
(1)align-items
(2)flexDirection
(3)All the options
(4)justifyContent

Answer:-(3)All the options

10.

_______________ architectural pattern causes unidirectional data flow.

Answer»

_______________ architectural pattern CAUSES unidirectional DATA flow.
Choose the correct option from below LIST
(1)TextInput
(2)Navigator
(3)Flux
(4)View

Answer:-(3)Flux

11.

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

Answer»

Which METHOD retrieves automatic UPDATES about the CURRENT location of the device?
CHOOSE the correct option from below list
(1)Geolocation.watchPosition()
(2)Geolocation.clearWatch()
(3)Geolocation.autoUpdates()
(4)Geolocation.showPosition()

ANSWER:-(1)Geolocation.watchPosition()

12.

React Native supports DOM and Virtual DOM concept.

Answer» REACT NATIVE supports DOM and VIRTUAL DOM concept.
Choose the correct option from below list
(1)True
(2)False

Answer:-(2)False
13.

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

Answer»

Please select the one which is not a React Native UI Component.
Choose the correct OPTION from below list
(1)ScrollView
(2)InputText
(3)TouchableHighlight
(4)Switch

Answer:-(4)Switch

14.

_______________ are the building blocks for a React Native application.

Answer»

_______________ are the building blocks for a React Native application.
Choose the CORRECT option from below list
(1)ELEMENTS
(2)Components
(3)VIEWS
(4)Events

Answer:-(2)Components

15.

The _______________ file defines some metadata for your project and, most importantly, declares React-Native as a dependency of your project.

Answer»

The _______________ FILE DEFINES some metadata for your project and, most importantly, declares React-Native as a DEPENDENCY of your project.
Choose the correct OPTION from below LIST
(1)None of the options
(2)index.ios.js
(3)package.json
(4)index.android.js

Answer:-(3)package.json

16.

_______________ is a component that enables navigation between different screens in the applications.

Answer»

_______________ is a component that ENABLES navigation between different SCREENS in the applications.
Choose the correct option from below list
(1)Navigator
(2)Linker
(3)NONE of the options
(4)NavPages

Answer:-(1)Navigator

17.

What type of data does a ListView take?

Answer»

What type of data does a LISTVIEW take?
Choose the correct option from below list
(1)ARRAYLIST
(2)data source
(3)ARRAY
(4)object

Answer:-(2)data source

18.

Which command do you have to run for installing React Native?

Answer»

Which command do you have to run for INSTALLING REACT Native?
CHOOSE the correct option from below list
(1)npm INSTALL -g react-native-cli
(2)none of the OPTIONS
(3)npm install g react-native-cli
(4)npm-install react-native-cli

Answer:-(1)npm install -g react-native-cli

19.

Developer of React Native is _______________.

Answer»

Developer of REACT Native is _______________.
CHOOSE the correct option from below list
(1)Facebook
(2)Google
(3)MICROSOFT
(4)Twitter

Answer:-(1)Facebook

20.

React Native can be described as "learn once, run anywhere".

Answer» REACT Native can be described as "LEARN once, run anywhere".
Choose the correct option from below LIST
(1)False
(2)True

Answer:-(1)False
21.

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

Answer»

Which METHOD is CALLED when a component is being REMOVED from the DOM?
CHOOSE the correct option from below list
(1)componentWillUpdate()
(2)componentDidMount()
(3)componentWillUnmount()
(4)componentWillMount()

Answer:-(3)componentWillUnmount()

22.

With React Native, you just style your application using _______________.

Answer»

With React Native, you just style your application using _______________.
Choose the correct option from below list
(1)SASS
(2)CSS
(3)XML
(4)JavaScript

Answer:-(4)JavaScript

23.

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

Answer»

AppRegistry is the JAVASCRIPT entry point for RUNNING all React NATIVE apps.
Choose the correct option from below LIST
(1)True
(2)False

Answer:-(1)True

24.

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

Answer»

For NETWORKING NEEDS, React Native framework provides the fetch API.
Choose the correct option from below list
(1)True
(2)False

Answer:-(1)True

25.

To build an iOS app, you need a Mac OS, and to build an Android app you need ____________.

Answer»

To build an IOS app, you need a Mac OS, and to build an Android app you need ____________.
Choose the correct option from below LIST
(1)Any one of the options
(2)Mac
(3)Windows
(4)Linux

Answer:-(1)Any one of the options

26.

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

Answer»

In REACT Native, Geolocation API is available through the _______________ global, so you do not need to import it.
Choose the CORRECT option from below list
(1)geolocation.naviagator
(2)None of the OPTIONS
(3)navigator.gps
(4)navigator.geolocation

Answer:-(4)navigator.geolocation

27.

In React Native, reusing code across platforms is hard.

Answer»

In REACT Native, REUSING code across platforms is hard.
Choose the CORRECT option from below list
(1)True
(2)FALSE

Answer:-(2)False

28.

.apk extension is the application file for Android whereas_______________ extension is the application file for iOS.

Answer»

.apk extension is the application file for Android whereas_______________ extension is the application file for iOS.
Choose the correct option from below LIST
(1).IPA
(2).ALX
(3).COD
(4).IOA

Answer:-(1).IPA

29.

How to create a new React Native project?

Answer»

How to create a new REACT Native project?
Choose the correct option from below list
(1)$ react native INIT
(2)$ react-native init
(3)RUN $ npm init
(4)create FILES manually

Answer:-(2)$ react-native init

30.

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

Answer»

You can use any CSS in the styles of the React Native StyleSheet object.
Choose the correct option from below LIST
(1)FALSE
(2)TRUE

Answer:-(2)True

31.

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

Answer»

Live Reloading and HOT Loading is present in React NATIVE Developer Tools.
Choose the CORRECT option from below list
(1)True
(2)False

Answer:-(1)True

32.

The chief difference between React Native and React is ________.

Answer»

The chief DIFFERENCE between REACT Native and React is ________.
Choose the CORRECT option from below LIST
(1)React Native is a Library whereas ReactJS is a FRAMEWORK.
(2)No difference
(3)ReactJS is a Library whereas React Native is a framework.
(4)React Native is for a web application whereas ReactJS is for mobile.

Answer:-(1)React Native is a Library whereas ReactJS is a framework.

33.

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

Answer» APPREGISTRY is the JavaScript exit point to run all REACT Native apps.
Choose the correct option from below LIST
(1)True
(2)FALSE

Answer:-(2)False