React (JavaScript library) Quiz

React (JavaScript library) Quiz

12th Grade

10 Qs

quiz-placeholder

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React (JavaScript library) Quiz

React (JavaScript library) Quiz

Assessment

Quiz

Other

12th Grade

Practice Problem

Hard

Created by

Thamaraiselvan S

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is React?

A back-end programming language

A front-end JavaScript library for building user interfaces

A database management system

A mobile application framework

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the key advantage of React in terms of rendering?

It rerenders all DOM elements every time

It only rerenders the parts of the page that have changed

It relies on server-side rendering for all updates

It renders the entire page on each change

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two primary ways of declaring components in React?

Server components and client components

HTML components and CSS components

Stateful components and stateless components

Class components and functional components

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are React Hooks?

Functions that manage server-side rendering in React

Functions that handle routing in React applications

Functions that let developers hook into React state and lifecycle features from function components

Functions that let developers hook into React state and lifecycle features from class components

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the Virtual DOM in React?

To handle server-side rendering exclusively

To efficiently update the browser's displayed DOM by computing differences

To render the entire page on each change

To directly update the real DOM elements

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When was the initial public release of React?

2013

2014

2016

2015

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the name of the React component for measuring performance?

ReactPerformance

React.unstable_Profiler

ReactProfilerAPI

ReactProfiler

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