MEAN Stack Quiz (Beginner) - All Questions

This beginner-level MEAN Stack quiz helps you understand the fundamentals of MongoDB, Express.js, Angular, and Node.js through easy and practical MCQs. Ideal for students, freshers, and beginners starting full-stack web development or preparing for entry-level interviews.

Question 1: What does MEAN stand for?

MongoDB, Express, Angular, Node
MySQL, Express, Angular, Node
MongoDB, Ember, Angular, Node
MongoDB, Express, React, Node

Explanation: MEAN stands for MongoDB, Express.js, Angular, and Node.js.

Question 2: Which technology in MEAN is used for frontend development?

MongoDB
Express.js
Angular
Node.js

Explanation: Angular is used to build the frontend UI.

Question 3: Which MEAN component is a NoSQL database?

MySQL
PostgreSQL
MongoDB
Oracle

Explanation: MongoDB is a NoSQL document-based database.

Question 4: Which language is commonly used across the MEAN stack?

Java
Python
JavaScript
C#

Explanation: JavaScript is used across frontend and backend in MEAN.

Question 5: What is Node.js mainly used for?

UI styling
Server-side development
Database storage
Designing layouts

Explanation: Node.js is used to build server-side applications.

Question 6: What is Express.js?

Frontend framework
Testing library
Node.js framework
Database

Explanation: Express.js is a backend framework built on Node.js.

Question 7: Which Angular feature binds data between component and view?

Routing
Dependency Injection
Data Binding
Services

Explanation: Data binding connects the component and the view.

Question 8: Which command initializes a Node.js project?

node init
npm start
npm init
node start

Explanation: npm init initializes a Node.js project.

Question 9: Which file stores project dependencies in Node.js?

index.js
server.js
package.json
config.json

Explanation: package.json stores dependencies and scripts.

Question 10: Which Angular file defines a component?

component.html
component.css
component.ts
component.json

Explanation: Angular components are defined in .ts files.

Question 11: Which HTTP method is used to retrieve data?

POST
PUT
GET
DELETE

Explanation: GET is used to fetch data.

Question 12: Which HTTP method is used to create data?

GET
POST
DELETE
PATCH

Explanation: POST is used to create new resources.

Question 13: Which format does MongoDB use to store data?

XML
CSV
JSON
BSON

Explanation: MongoDB stores data internally in BSON format.

Question 14: Which Angular directive repeats elements?

*ngIf
*ngFor
ngRepeat
ngLoop

Explanation: *ngFor is used to loop through lists.

Question 15: Which command starts an Angular application?

npm start
ng run
ng serve
node serve

Explanation: ng serve starts the Angular development server.

Question 16: Which Express method defines GET routes?

app.post()
app.use()
app.get()
app.route()

Explanation: app.get() defines GET routes.

Question 17: Which middleware parses JSON in Express?

bodyParser
express.json()
jsonParser()
dataParser()

Explanation: express.json() parses incoming JSON requests.

Question 18: Which Angular feature is used for navigation?

Services
Pipes
Routing
Modules

Explanation: Routing enables navigation between views.

Question 19: Which MongoDB method retrieves documents?

insert()
find()
update()
delete()

Explanation: find() retrieves documents from a collection.

Question 20: Which Node.js module handles file operations?

http
fs
path
os

Explanation: fs module handles file system operations.

Question 21: Which HTTP status code means success?

Explanation: 200 indicates a successful request.

Question 22: Which Angular feature formats data in templates?

Services
Directives
Pipes
Modules

Explanation: Pipes format data in templates.

Question 23: Which MongoDB command inserts a document?

findOne()
insertOne()
updateOne()
deleteOne()

Explanation: insertOne() adds a new document.

Question 24: Which Node.js function starts the server?

server.run()
app.listen()
node.start()
server.open()

Explanation: app.listen() starts the server.

Question 25: Which Angular decorator defines a component?

@NgModule
@Injectable
@Component
@Directive

Explanation: @Component defines Angular components.

Question 26: Which file usually contains Express routes?

routes.js
index.html
package.json
config.env

Explanation: routes.js commonly stores Express routes.

Question 27: Which MongoDB port is default?

3000
8080
27017
5000

Explanation: MongoDB runs on port 27017 by default.

Question 28: Which Angular feature shares data between components?

Modules
Services
Directives
Pipes

Explanation: Services share data across components.

Question 29: Which Node.js package manages environment variables?

env
dotenv
config
vars

Explanation: dotenv loads environment variables.

Question 30: Which MongoDB operation updates data?

insert()
find()
updateOne()
read()

Explanation: updateOne() updates existing documents.

Question 31: Which Angular feature handles forms?

Modules
FormsModule
HttpClient
Router

Explanation: FormsModule handles Angular forms.

Question 32: Which Express middleware logs HTTP requests?

helmet
cors
morgan
body-parser

Explanation: morgan logs HTTP requests.

Question 33: Which HTTP method deletes data?

GET
POST
PUT
DELETE

Explanation: DELETE removes data.

Question 34: Which Angular lifecycle hook runs first?

ngOnInit
ngAfterViewInit
ngOnChanges
ngOnDestroy

Explanation: ngOnChanges runs before ngOnInit.

Question 35: Which Node.js feature allows non-blocking I/O?

Multithreading
Event loop
Worker threads
Callbacks only

Explanation: Event loop enables non-blocking I/O.

Question 36: Which MongoDB feature improves query speed?

Collections
Documents
Indexes
Schemas

Explanation: Indexes improve query performance.

Question 37: Which Angular CLI command creates a component?

ng new component
ng add component
ng generate component
ng create component

Explanation: ng generate component creates a new component.

Question 38: Which file is the entry point of an Angular app?

app.module.ts
main.ts
index.html
app.component.ts

Explanation: main.ts is the entry point.

Question 39: Which Express method handles middleware?

app.get()
app.use()
app.post()
app.listen()

Explanation: app.use() applies middleware.

Question 40: Which Angular feature enables dependency injection?

Modules
Services
DI system
Routing

Explanation: Angular has a built-in DI system.

Question 41: Which MongoDB command deletes documents?

remove()
deleteOne()
drop()
clear()

Explanation: deleteOne() removes a document.

Question 42: Which Node.js object handles requests?

req
res
app
router

Explanation: req contains incoming request data.

Question 43: Which Angular feature helps navigation guards?

Services
Pipes
Route Guards
Modules

Explanation: Route Guards control navigation access.

Question 44: Which MongoDB method sorts results?

order()
group()
sort()
arrange()

Explanation: sort() orders query results.

Question 45: Which HTTP status code means resource not found?

Explanation: 404 indicates resource not found.

Question 46: Which Angular feature enables lazy loading?

Services
Modules
Components
Pipes

Explanation: Lazy loading is implemented using modules.

Question 47: Which Node.js module handles paths?

fs
path
url
os

Explanation: path module manages file paths.

Question 48: Which MongoDB feature enforces schema structure?

Indexes
Collections
Mongoose schemas
Documents

Explanation: Mongoose schemas enforce structure.

Question 49: Which Angular feature handles HTTP requests?

HttpClient
FormsModule
Router
Injector

Explanation: HttpClient handles HTTP requests.

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MEAN Stack Quiz (Beginner)

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MEAN Stack Quiz (Beginner)