MERN

Question 1

what does MERN stand for ?

Answer 1

MongoDB, Express, React, Node

Question 2

what is Mongo DB?

Answer 2

creates database and stores data

Question 3

What is express?

Answer 3

creates a server

Question 4

what is React?

Answer 4

components to create user interface

Question 5

what are steps to create frontend of MERN

Answer 5

use React to build frontend using components

Question 6

what is the frontend also called?

Answer 6

client: the visible part of a full stack app

Question 7

how do we start the frontend to see our project?

Answer 7

in the terminal: enter “npm start”

Question 8

when the server starts where do we see the front end?

Answer 8

http://local host: 3000

Question 9

the front end has a header where users can do what ?

Answer 9

navigate to other pages : also they can sign in and login

Question 10

what is the role of the client?

Answer 10

sends requests to the server and receives responses

Question 11

what is our coding editor called?

Answer 11

VS code

Question 12

what is the backend also called?

Answer 12

server

Question 13

what is the role of the server ?

Answer 13

to listen to requests from the frontend and return a response

Question 14

For a MERN Project what dependencies do we often want to install?

Answer 14

node
react
express
mongoose
Apollo
GraphQL
JSON WEB TOKEN ( JWT)

Question 15

what is JWT used for?

Answer 15

authentication

Question 16

what is express js?

Answer 16

a backend web application framework based on Node.js

Question 17

what is node js?

Answer 17

a backend JavaScript runtime environment

Question 18

explain what is happening in the image ?

Answer 18

great job!

Question 19

how do we start the backend to see our project?

Answer 19

npm run dev

Question 20

what do routers do?

Answer 20

receives and sends data on computer networks

Question 21

what does Apollo do?

Answer 21

manages data with GraphQL