Angular Quiz Test Online (30 random Questions) 2026

This quick 30-minute challenge consists of 30 random multiple-choice questions designed to test your knowledge across various Angular topics, including the introduction to Angular, TypeScript basics, project structure and fundamentals, components and communication, services and dependency injection, routing and navigation, forms in Angular, HTTP and API integration, state management with RxJS and NgRx, as well as authentication and security practices. Whether you’re just starting or looking to deepen your expertise, this quiz will enhance your understanding of Angular’s framework and best practices.

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30 Minutes Angular Quiz Test Online

Welcome to the Angular Quiz! This quick 30-minute challenge consists of 30 random multiple-choice questions designed to test your knowledge across various Angular topics, including the introduction to Angular, TypeScript basics, project structure and fundamentals, components and communication, services and dependency injection, routing and navigation, forms in Angular, HTTP and API integration, state management with RxJS and NgRx, as well as authentication and security practices. Whether you're just starting or looking to deepen your expertise, this quiz will enhance your understanding of Angular's framework and best practices.

1 / 30

1. What does HttpOnly in cookies do?

A) Blocks Angular services

B) Enables real-time data binding

C) Prevents JavaScript from accessing cookies

D) Allows JavaScript to access cookies

2 / 30

2. What Angular feature helps prevent CSRF attacks?

A) HTTP Interceptors

B) CORS Headers

C) Angular Forms

D) Content Projection

3 / 30

3. What does StoreModule.forRoot() do in NgRx?

A) Handles API requests

B) Creates a new Angular module

C) Initializes the global store in an Angular application

D) Registers new components dynamically

4 / 30

4. What method is used to listen for route changes?

A) router.events.subscribe()

B) router.update()

C) router.onRouteChange()

D) router.change()

5 / 30

5. What is the best way to handle errors in a deployed Angular app?

A) Using a global error handler

B) Logging errors in the console

C) Disabling error messages

D) Restarting the server

6 / 30

6. How do you check if a form is completely valid before submission?

A) form.valid

B) form.isValid()

C) form.isComplete()

D) form.validateAll()

7 / 30

7. How do you test Angular HTTP services?

A) Using APIUnitTestModule

B) Using HttpMockService

C) Using HttpTestClient

D) Using HttpClientTestingModule

8 / 30

8. What is OAuth 2.0 in Angular authentication?

A) A CSS framework for styling Angular applications

B) A frontend library for animations

C) A debugging tool for Angular components

D) A token-based authentication framework

9 / 30

9. What is the purpose of RouterModule in Angular?

A) To manage component styles

B) To communicate with backend servers

C) To handle application routing

D) To store application data

10 / 30

10. How can you pass parameters in an Angular route?

A) { path: 'user:id', component: UserComponent }

B) { path: 'user/{id}', component: UserComponent }

C) { path: 'user?', component: UserComponent }

D) { path: 'user/:id', component: UserComponent }

11 / 30

11. What does the finalize() operator do in an HTTP request?

A) Logs request details

B) Hides errors from the console

C) Runs a function after the request completes

D) Cancels an API request

12 / 30

12. What command is used to generate a new component in Angular?

A) ng add component component-name

B) ng generate component component-name

C) ng new component component-name

D) ng create component-name

13 / 30

13. How many components can an Angular application have?

A) Unlimited

B) Only three

C) Only one

D) Only ten

14 / 30

14. What is an alternative way to inject dependencies manually?

A) By modifying the component template

B) Using import { MyService }

C) Using Injector.get(MyService)

D) Using new MyService()

15 / 30

15. What is take(1) used for in Angular HTTP requests?

A) To take the first API response and unsubscribe automatically

B) To retry the request if it fails

C) To increase API performance

D) To add a delay before execution

16 / 30

16. How do you specify a function's return type in TypeScript?

A) function myFunc = (number) => { return 10; }

B) function myFunc(): number { return 10; }

C) function myFunc { return number 10; }

D) function myFunc -> number { return 10; }

17 / 30

17. Which of the following is a key feature of TypeScript?

A) Object-oriented programming features

B) Only works with Angular

C) No support for JavaScript functions

D) Dynamic typing

18 / 30

18. How do you compile a TypeScript file?

A) node filename.ts

B) tsc filename.ts

C) compile filename.ts

D) typescript filename.ts

19 / 30

19. Which directive is used to create a form in Template-driven forms?

A) formGroup

B) ngSubmit

C) formControl

D) ngForm

20 / 30

20. How do you define a component in Angular?

A) Using the @Directive decorator

B) Using the @Module decorator

C) Using the @Component decorator

D) Using the @Injectable decorator

21 / 30

21. Which of the following is NOT a valid Angular directive?

A) *ngFor

B) *ngClass

C) *ngRepeat

D) *ngIf

22 / 30

22. What is the default value of pristine in a new form?

A) undefined

B) false

C) null

D) true

23 / 30

23. How do you explicitly specify a return type of void in TypeScript?

A) function example() -> void {}

B) function example() { return void; }

C) function example(): undefined {}

D) function example(): void {}

24 / 30

24. What does OpenID Connect add to OAuth 2.0?

A) Authentication

B) Authorization

C) Encryption

D) Security

25 / 30

25. What is the correct syntax for applying validation in Reactive forms?

A) setValidators(required)

B) required='true'

C) form.validate()

D) Validators.required

26 / 30

26. What happens if a component is not declared in an Angular module?

A) It will still work

B) It will throw an error

C) It will be ignored by Angular

D) It will be converted into a directive

27 / 30

27. How do you define routes inside a feature module?

A) RouterModule.forRoot(routes)

B) RouterModule.forChild(routes)

C) FeatureModule.configRoutes(routes)

D) RouterModule.define(routes)

28 / 30

28. Who is the original creator of AngularJS?

A) Misko Hevery

B) Brendan Eich

C) Ryan Dahl

D) Evan You

29 / 30

29. Which hosting platform is commonly used for deploying Angular apps?

A) All of the above

B) GitHub Pages

C) Firebase Hosting

D) Netlify

30 / 30

30. What does routerLinkActive do?

A) Highlights the active link

B) Redirects users automatically

C) Caches routes

D) Disables inactive links

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