Angular Quiz Test Online (30 random Questions) 2025

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. Which file should be updated to configure environment-specific settings in Angular?

A) app.module.ts

B) styles.css

C) angular.json

D) environment.ts

2 / 30

2. In which year was AngularJS first released?

A) 2006

B) 2008

C) 2010

D) 2009

3 / 30

3. What is an observable in RxJS?

A) A design pattern for object-oriented programming

B) A function that synchronously executes code

C) A stream of values emitted over time

D) A storage mechanism for data persistence

4 / 30

4. Who is the original creator of AngularJS?

A) Misko Hevery

B) Brendan Eich

C) Evan You

D) Ryan Dahl

5 / 30

5. What encryption technique is recommended for storing passwords?

A) Plain text

B) Hashing with bcrypt

C) URL Encoding

D) Base64 Encoding

6 / 30

6. Which language is primarily used in Angular development?

A) PHP

B) Python

C) TypeScript

D) JavaScript

7 / 30

7. What is the output of console.log(10 / "2") in TypeScript?

A) Error

B) 5

C) NaN

D) "5"

8 / 30

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

A) Only works with Angular

B) No support for JavaScript functions

C) Object-oriented programming features

D) Dynamic typing

9 / 30

9. What is a child route in Angular?

A) A secondary navigation option

B) A route that is lazy-loaded

C) A sub-route inside a parent route

D) A duplicate route

10 / 30

10. How do you add NgRx Store to an Angular app?

A) import { ReduxModule } from '@angular/platform-redux';

B) import { StoreModule } from '@ngrx/store';

C) import { NgRxModule } from '@angular/core';

D) import { StateModule } from '@ngrx/ngrx';

11 / 30

11. What file extension is used for TypeScript files?

A) .js

B) .tsx

C) .jsx

D) .ts

12 / 30

12. Which Angular package is required to handle HTTP requests?

A) @angular/common/http

B) @angular/forms

C) @angular/http

D) @angular/router

13 / 30

13. What is the default way to pass data from a parent to a child component in Angular?

A) Using local storage

B) Using @Input decorator

C) Using @Output decorator

D) Using a service

14 / 30

14. What is observe: 'response' used for in an HTTP request?

A) To disable request validation

B) To send a GET request

C) To observe full HTTP response, including headers

D) To only get JSON data

15 / 30

15. How can a service be limited to a specific module?

A) Using @Component({ providers: [MyService] })

B) Using { providedIn: 'root' }

C) Adding it in providers array of a module

D) Declaring it inside main.ts

16 / 30

16. 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

17 / 30

17. Which module system does TypeScript use by default?

A) ES6 Modules

B) UMD

C) CommonJS

D) AMD

18 / 30

18. What is OAuth 2.0 in Angular authentication?

A) A token-based authentication framework

B) A CSS framework for styling Angular applications

C) A frontend library for animations

D) A debugging tool for Angular components

19 / 30

19. Which function in NgRx is used to define initial state?

A) defineState()

B) createReducer()

C) setInitialState()

D) initializeState()

20 / 30

20. What does HttpOnly in cookies do?

A) Allows JavaScript to access cookies

B) Enables real-time data binding

C) Prevents JavaScript from accessing cookies

D) Blocks Angular services

21 / 30

21. What is the purpose of RouterModule in Angular?

A) To store application data

B) To handle application routing

C) To manage component styles

D) To communicate with backend servers

22 / 30

22. What does CSRF stand for?

A) Cross-Site Request Forgery

B) Client-Side Resource Fetch

C) Common Security Request Form

D) Cross-Server Response Function

23 / 30

23. What does OpenID Connect add to OAuth 2.0?

A) Security

B) Encryption

C) Authorization

D) Authentication

24 / 30

24. How do you define an optional property in a TypeScript interface?

A) property?: string;

B) property: string?;

C) property! : string;

D) property: string;

25 / 30

25. What is a Directive in Angular?

A) A module

B) A way to manipulate the DOM

C) A function to make API calls

D) A CSS class

26 / 30

26. How do you prevent multiple instances of a service?

A) Create multiple service classes

B) Avoid using services

C) Use { providedIn: 'root' }

D) Manually create service instances

27 / 30

27. What is the purpose of TypeScript's namespace?

A) To handle exceptions

B) To create a module-like structure for code organization

C) To define functions

D) To declare variables

28 / 30

28. Which of the following is true about dirty in Angular forms?

A) It checks if the form is valid

B) It resets the form

C) It is always false

D) It becomes true when the form is modified

29 / 30

29. Which method is used to send data to a server while updating an existing record?

A) http.get()

B) http.post()

C) http.put()

D) http.delete()

30 / 30

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

A) angular.json

B) app.module.ts

C) main.ts

D) index.html

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