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 is OAuth 2.0 in Angular authentication?

A) A CSS framework for styling Angular applications

B) A frontend library for animations

C) A token-based authentication framework

D) A debugging tool for Angular components

2 / 30

2. What is the primary function of the package.json file in an Angular project?

A) Defines project styles

B) Contains HTML templates

C) Configures Angular modules

D) Lists dependencies and scripts

3 / 30

3. Which file is the entry point of an Angular application?

A) app.module.ts

B) main.ts

C) index.html

D) angular.json

4 / 30

4. What is the primary reason for enabling gzip compression in Angular deployment?

A) Improve CSS styling

B) Enhance website security

C) Reduce file sizes and improve load speed

D) Optimize database queries

5 / 30

5. Which directive disables a form control?

A) disableControl

B) disable

C) [disabled]

D) formControl.disable()

6 / 30

6. Which Angular decorator is used to inject HttpClient into a service?

A) @Injectable

B) @Component

C) @Module

D) @HttpService

7 / 30

7. What symbol is used to separate query parameters in a URL?

A) &

B) #

C) ?

D) /

8 / 30

8. What does touched mean in Angular forms?

A) The user has clicked inside the field

B) The field is empty

C) The field has been modified

D) The form has been submitted

9 / 30

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

A) Using subRoutes: []

B) Using the children property inside a route

C) Using Router.forChild()

D) Using nestedRoutes: []

10 / 30

10. How can you install a third-party package in an Angular project?

A) Both A and B

B) ng add package-name

C) npm install package-name

D) ng install package-name

11 / 30

11. Which module must be imported to enable routing in Angular?

A) @angular/core

B) @angular/forms

C) @angular/common

D) @angular/router

12 / 30

12. What is the purpose of the angular.json file?

A) It contains project configuration settings

B) It is responsible for component styling

C) It manages backend API calls

D) It defines project dependencies

13 / 30

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

A) HTTP Interceptors

B) Directives

C) Services

D) Route Guards

14 / 30

14. How do you trigger an event using EventEmitter in Angular?

A) this.eventName.emit(value)

B) this.eventName.send()

C) this.eventName.trigger()

D) this.eventName.broadcast(value)

15 / 30

15. What does the enum type do in TypeScript?

A) Represents a data type for decimal numbers

B) Defines a set of named constant values

C) Defines a class

D) Creates an array

16 / 30

16. How do you apply validation in Template-driven forms?

A) Using Angular Validators in TypeScript

B) Forms in Angular do not support validation

C) Using validation directives in the template

D) Using formValidate() function

17 / 30

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

A) To retry the request if it fails

B) To add a delay before execution

C) To increase API performance

D) To take the first API response and unsubscribe automatically

18 / 30

18. What does the .subscribe() method do in an HTTP request?

A) Sends an API request

B) Caches the response

C) Cancels the request

D) Executes the request and listens for a response

19 / 30

19. What is the default HTTP request method used by httpClient if not specified?

A) POST

B) GET

C) PUT

D) DELETE

20 / 30

20. Which decorator is used for dependency injection in Angular?

A) @Output

B) @Component

C) @Directive

D) @Injectable

21 / 30

21. What is the purpose of the app-routing.module.ts file?

A) It defines routes for navigation

B) It sets up the database connection

C) It initializes the Angular application

D) It contains component logic

22 / 30

22. How do you handle API pagination in Angular?

A) Using paginationService

B) Using queryParams

C) Using serverPagination module

D) Using pageToken in headers

23 / 30

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

A) navigateTo()

B) navigate()

C) goTo()

D) redirectTo()

24 / 30

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

A) Add it in the providers array of @Component

B) Declare it in @NgModule.providers

C) Use { providedIn: 'root' }

D) Import it in app.module.ts

25 / 30

25. What Angular security feature prevents clickjacking?

A) Angular Guards

B) X-Frame-Options header

C) Data Binding

D) URL Hashing

26 / 30

26. How can you reset a form in Angular?

A) form.clear()

B) form.value = null

C) form.update()

D) form.reset()

27 / 30

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

A) No support for JavaScript functions

B) Object-oriented programming features

C) Only works with Angular

D) Dynamic typing

28 / 30

28. What is the purpose of tap() in an HTTP request?

A) It cancels the request

B) It validates the request headers

C) It modifies the response before returning it

D) It logs or performs side effects without modifying the response

29 / 30

29. Who developed TypeScript?

A) Apple

B) Microsoft

C) Facebook

D) Google

30 / 30

30. Where should you store a JWT token in an Angular application for security reasons?

A) In local storage

B) In session storage

C) In a plain text file

D) In HTTP cookies with HttpOnly and Secure flags

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