MERN Stack Tech Quiz

What does the 'M' in MERN stand for?

• MongoDB

• MySQL

• Mongoose

• Markdown

Which language runs in the browser?

• Node.js

• React.js

• JavaScript

• Express.js

JSX stands for?

• JavaScript XML

• Java Syntax Extension

• JSON XML

• Java Servlet Extension

What does useState return?

• array

• object

• function

• boolean

React is a ___ library.

• UI

• Database

• Backend

• Full-stack

Node.js is built on which engine?

• Chakra

• SpiderMonkey

• V8

• Rhino

Which of the following is a NoSQL DB?

• MySQL

• PostgreSQL

• MongoDB

• Oracle

Which command starts a React app?

• node start

• react init

• npm start

• yarn run-app

Which hook runs after every render?

• useFetch

• useState

• useEffect

• useRef

What is the default MongoDB port?

• 3306

• 27017

• 5432

• 3000