Most asked top Interview Questions and Answers & Online Test
Education platform for interview prep, online tests, tutorials, and live practice

Build skills with focused learning paths, mock tests, and interview-ready content.

WithoutBook brings subject-wise interview questions, online practice tests, tutorials, and comparison guides into one responsive learning workspace.

Prepare Interview
Home / Interview Subjects / React Native
WithoutBook LIVE Mock Interviews React Native Related interview subjects: 20

Interview Questions and Answers

Know the top React Native interview questions and answers for freshers and experienced candidates to prepare for job interviews.

Total 26 questions Interview Questions and Answers

The Best LIVE Mock Interview - You should go through before interview

Know the top React Native interview questions and answers for freshers and experienced candidates to prepare for job interviews.

Interview Questions and Answers

Search a question to view the answer.

Experienced / Expert level questions & answers

Ques 1

Explain the concept of 'Redux' in React Native.

Redux is a state management library for React Native applications. It centralizes the application's state and allows for predictable state changes through actions and reducers.
Save For Revision

Save For Revision

Bookmark this item, mark it difficult, or place it in a revision set.

Open My Learning Library
Is it helpful?
Add Comment View Comments
Ques 2

How can you optimize performance in a React Native app?

Performance optimization in React Native can be achieved by using PureComponent, memoization, optimizing renders, and using tools like React DevTools.
Save For Revision

Save For Revision

Bookmark this item, mark it difficult, or place it in a revision set.

Open My Learning Library
Is it helpful?
Add Comment View Comments
Ques 3

Explain the concept of 'Native Modules' in React Native.

Native Modules allow developers to write native code in Java, Objective-C, or Swift and expose it to the JavaScript thread in a React Native app. They are used for tasks that cannot be accomplished with JavaScript alone.
Save For Revision

Save For Revision

Bookmark this item, mark it difficult, or place it in a revision set.

Open My Learning Library
Is it helpful?
Add Comment View Comments
Ques 4

What is the purpose of the 'React Native Bridge'?

The React Native Bridge is a communication layer between the JavaScript code and the native code in React Native. It enables the execution of native code from the JavaScript thread.
Save For Revision

Save For Revision

Bookmark this item, mark it difficult, or place it in a revision set.

Open My Learning Library
Is it helpful?
Add Comment View Comments
Ques 5

What is the purpose of the 'Animated' API in React Native?

The 'Animated' API in React Native is used for creating smooth animations. It provides a way to animate the style properties of components, such as opacity and position.

Example:

import { Animated } from 'react-native';

const fadeAnim = new Animated.Value(0);

Animated.timing(fadeAnim, {
  toValue: 1,
  duration: 1000,
}).start();
Save For Revision

Save For Revision

Bookmark this item, mark it difficult, or place it in a revision set.

Open My Learning Library
Is it helpful?
Add Comment View Comments

Most helpful rated by users:

Copyright © 2026, WithoutBook.