What is React primarily used for?

• Server-side scripting

• Database design

• Building user interfaces

• Styling with CSS

Who developed React?

• Google

• Microsoft

• Facebook

• Twitter

What is a component in React?

• A database table

• A reusable piece of UI

• A CSS style

• A backend route

What is the correct command to create a new React app?

• npm create react

• npx create-react-app myApp

• npm init react-app

• npx init react

JSX stands for:

• JavaScript Extended

• JavaScript XML

• Java Syntax Extension

• JSON Styled XML

Which method is used to render a React component to the DOM?

• React.build()

• React.create()

• ReactDOM.render()

• React.output()

Which hook is used to add lifecycle behavior in functional components?

• useLifecycle

• useEffect

• useRender

• useLife

Which of the following is a hook in React?

• usePrint

• useHTML

• useState

• useStyle

React is based on which programming language?

• Java

• Python

• JavaScript

• TypeScript

In React, props are:

• Mutable

• Static values

• Used to style components

• Read-only data passed to components