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.

1 votes, 3 avg

227

You have 30 minutes to complete the quiz. The timer will start when you click the 'Start Quiz' button. Please ensure you are ready before beginning.

Time is up! Your quiz has ended. Your responses have been submitted automatically.

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. Which company maintains and supports Angular?

A) Microsoft

B) Google

C) Facebook

D) Amazon

2 / 30

2. What is the role of asyncValidators in Angular forms?

A) They reset the form

B) They perform asynchronous validation, like checking unique usernames

C) They perform synchronous validation

D) They disable validation temporarily

3 / 30

3. What is Angular mainly used for?

A) Mobile app development only

B) Database management

C) Backend development

D) Building single-page applications (SPAs)

4 / 30

4. Which lifecycle hook is best for initializing a service in a component?

A) ngOnDestroy()

B) ngAfterViewInit()

C) ngOnInit()

D) ngAfterContentInit()

5 / 30

5. What file extension is used for TypeScript files?

A) .tsx

B) .js

C) .ts

D) .jsx

6 / 30

6. What is the purpose of createSelector() in NgRx?

A) To optimize and retrieve specific pieces of state

B) To handle side effects in effects

C) To modify an observable's behavior

D) To generate a new reducer

7 / 30

7. What are NgRx actions?

A) A function that filters observables

B) A way to trigger state changes

C) A replacement for services

D) UI components for animations

8 / 30

8. What is the primary purpose of RxJS in Angular?

A) To write SQL queries

B) To create CSS animations

C) To handle asynchronous data streams

D) To replace JavaScript completely

9 / 30

9. Which RxJS operator is used to retry an HTTP request if it fails?

A) map()

B) retry()

C) delay()

D) catchError()

10 / 30

10. How many components can an Angular application have?

A) Only three

B) Only one

C) Unlimited

D) Only ten

11 / 30

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

A) Handles API requests

B) Initializes the global store in an Angular application

C) Registers new components dynamically

D) Creates a new Angular module

12 / 30

12. What is a Module in Angular?

A) A JavaScript function

B) A built-in HTML tag

C) A container for components and services

D) A third-party library

13 / 30

13. Which Angular service is used to make HTTP calls?

A) HttpClient

B) Http

C) ApiService

D) HttpService

14 / 30

14. What happens when a service is removed from the providers array but still injected into a component?

A) Angular throws an error

B) A new instance is created manually

C) The component works fine without it

D) The service is automatically re-added

15 / 30

15. Which attack does Angular’s built-in Content Security Policy (CSP) help prevent?

A) DDoS attacks

B) Cross-Site Scripting (XSS)

C) SQL injection

D) Buffer overflow

16 / 30

16. What is the main decorator used to define an Angular module?

A) @Component

B) @Directive

C) @Injectable

D) @NgModule

17 / 30

17. Which file contains the main styles for an Angular project?

A) styles.css or styles.scss

B) app.component.html

C) angular.json

D) main.ts

18 / 30

18. What is Dependency Injection (DI) in Angular?

A) A function that manages component state

B) A method to directly access the database

C) A design pattern to manage dependencies in a class

D) A tool for debugging Angular applications

19 / 30

19. What Angular feature is used to automatically attach authentication headers to HTTP requests?

A) Directives

B) HTTP Interceptors

C) Route Guards

D) Services

20 / 30

20. How do you define a child route in Angular?

A) Using the children property inside a route

B) Using Router.forChild()

C) Using nestedRoutes: []

D) Using subRoutes: []

21 / 30

21. Which method is used for programmatic navigation in Angular?

A) redirectTo()

B) navigate()

C) navigateTo()

D) goTo()

22 / 30

22. Which status code represents a successful API request?

A) 400

B) 200

C) 404

D) 500

23 / 30

23. How can two unrelated components communicate in Angular?

A) Using @Output

B) Using local variables

C) Using a shared service

D) Using @Input

24 / 30

24. How does a child component communicate with a parent component?

A) Using @Input decorator

B) Using @Injectable service

C) Using @Output and EventEmitter

D) Using @ChildComponent decorator

25 / 30

25. What does the HttpInterceptor modify?

A) Requests

B) Routes

C) Components

D) Styles

26 / 30

26. Which method is best for sending large files to a server?

A) http.post() with FormData

B) http.delete()

C) http.put() with JSON

D) http.get()

27 / 30

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

A) Runs a function after the request completes

B) Hides errors from the console

C) Logs request details

D) Cancels an API request

28 / 30

28. How can a service be injected at the component level instead of globally?

A) Declare it in @NgModule.providers

B) Add it in the providers array of @Component

C) Use { providedIn: 'root' }

D) Import it in app.module.ts

29 / 30

29. What is the purpose of the tsconfig.json file in an Angular project?

A) Defines Angular component styles

B) Stores Angular service configurations

C) Configures TypeScript compilation settings

D) Manages routing configurations

30 / 30

30. What is the safest HTTP method for authentication?

A) DELETE

B) POST

C) GET

D) PUT

Your score is

The average score is 60%

Rate Your Experience!

Anonymous feedback

Thank you for your feedback! We appreciate your input.

10 Minutes Docker Quiz Test Online

10 Minutes JavaScript Quiz Test Online

10 Minutes Angular Quiz Test Online

10 Minutes CSS Quiz Test Online

Online Quiz Test (with time limit)

Docker Quiz Test Online (30 random Questions)

Related