Angular is a robust, open-source JavaScript framework developed by Google for building dynamic and scalable single-page web applications. It employs a component-based architecture, enabling developers to create modular, maintainable code with features like two-way data binding, dependency injection, and a powerful routing system. Ideal for large-scale projects, Angular supports TypeScript, integrates seamlessly with HTML and CSS, and offers built-in tools for testing, state management, and responsive design, making it a go-to choice for modern web development.
Table of contents
- Part 1: OnlineExamMaker AI quiz maker – Make a free quiz in minutes
- Part 2: 20 Angular quiz questions & answers
- Part 3: Automatically generate quiz questions using AI Question Generator
Part 1: OnlineExamMaker AI quiz maker – Make a free quiz in minutes
Still spend a lot of time in editing questions for your next Angular assessment? OnlineExamMaker is an AI quiz maker that leverages artificial intelligence to help users create quizzes, tests, and assessments quickly and efficiently. You can start by inputting a topic or specific details into the OnlineExamMaker AI Question Generator, and the AI will generate a set of questions almost instantly. It also offers the option to include answer explanations, which can be short or detailed, helping learners understand their mistakes.
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Part 2: 20 Angular quiz questions & answers
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1. Question: What is Angular primarily used for?
A. Building backend servers
B. Creating dynamic web applications
C. Designing databases
D. Developing mobile operating systems
Answer: B
Explanation: Angular is a platform and framework for building single-page client applications using HTML and TypeScript, allowing for dynamic and responsive web interfaces.
2. Question: What is the key difference between Angular and AngularJS?
A. Angular uses Java, while AngularJS uses TypeScript
B. AngularJS is based on MVC, while Angular uses components and directives
C. Angular is only for mobile apps
D. There is no difference
Answer: B
Explanation: Angular (from version 2+) adopts a component-based architecture, whereas AngularJS (version 1.x) is primarily based on the Model-View-Controller (MVC) pattern.
3. Question: In Angular, what is a component?
A. A reusable piece of code for styling
B. A class that controls a portion of the user interface
C. A service for handling HTTP requests
D. A module for routing
Answer: B
Explanation: A component in Angular is a TypeScript class that interacts with the HTML template to manage a part of the UI, including its logic and data.
4. Question: How do you create a new component in Angular using the CLI?
A. ng generate component
B. ng create component
C. ng new component
D. ng add component
Answer: A
Explanation: The Angular CLI command `ng generate component [name]` scaffolds a new component with the necessary files and structure.
5. Question: What are directives in Angular?
A. Functions that handle data binding
B. Markers on a DOM element that tell Angular to do something
C. Services for API calls
D. Classes for routing configuration
Answer: B
Explanation: Directives are instructions in the DOM that Angular interprets to manipulate the HTML and add behavior, such as structural or attribute directives.
6. Question: Which of the following is a structural directive in Angular?
A. ngModel
B. ngIf
C. ngStyle
D. ngClass
Answer: B
Explanation: The ngIf directive conditionally adds or removes elements from the DOM, making it a structural directive that alters the layout.
7. Question: What type of data binding is used in Angular for two-way binding?
A. Interpolation binding
B. Property binding
C. Event binding
D. [(ngModel)] binding
Answer: D
Explanation: Two-way data binding in Angular is achieved using [(ngModel)], which synchronizes the data between the model and the view automatically.
8. Question: What is the purpose of services in Angular?
A. To handle UI rendering
B. To share data and functionality across components
C. To define routes
D. To create templates
Answer: B
Explanation: Services are singleton objects that provide reusable functionality, such as data sharing or API calls, injectable into components.
9. Question: How does Angular implement dependency injection?
A. By manually passing objects to constructors
B. Through an injector that provides instances of classes
C. Using global variables
D. Via HTML attributes
Answer: B
Explanation: Angular’s dependency injection system uses an injector to provide dependencies to classes, promoting modularity and testability.
10. Question: What is the role of the AppModule in an Angular application?
A. To define the main component only
B. To bootstrap the application and declare components, services, and imports
C. To handle HTTP requests
D. To manage user authentication
Answer: B
Explanation: The AppModule, defined in app.module.ts, is the root module that configures the application by declaring components, importing modules, and providing services.
11. Question: Which lifecycle hook is called after Angular has initialized all data-bound properties?
A. ngOnInit
B. ngOnChanges
C. ngOnDestroy
D. ngAfterViewInit
Answer: A
Explanation: The ngOnInit lifecycle hook is invoked after the component’s data-bound properties have been initialized, ideal for initialization logic.
12. Question: How does Angular handle routing?
A. Using HTML links only
B. With the RouterModule to define routes and navigate between views
C. Through direct URL manipulation
D. Via server-side rendering
Answer: B
Explanation: Angular uses the RouterModule to configure routes, allowing navigation between different components based on the URL.
13. Question: What is the difference between template-driven and reactive forms in Angular?
A. Template-driven forms are for mobile only
B. Reactive forms use observables, while template-driven forms rely on directives in the template
C. There is no difference
D. Reactive forms are easier to test
Answer: B
Explanation: Template-driven forms use ngModel and other directives for two-way binding, whereas reactive forms are built programmatically with FormGroup and FormControl for more control and testability.
14. Question: Which module is used for making HTTP requests in Angular?
A. FormsModule
B. HttpClientModule
C. RouterModule
D. BrowserModule
Answer: B
Explanation: The HttpClientModule provides the HttpClient service, which simplifies making HTTP requests to APIs from Angular applications.
15. Question: What are pipes in Angular?
A. Functions for routing
B. Tools for transforming data in templates
C. Services for dependency injection
D. Directives for conditional rendering
Answer: B
Explanation: Pipes are used to transform data in the template, such as formatting dates or currencies, without changing the underlying data.
16. Question: How does Angular support observables?
A. Through the built-in Observable class in core modules
B. Via the RxJS library, which is integrated with Angular
C. Only for HTTP requests
D. Observables are not used in Angular
Answer: B
Explanation: Angular integrates RxJS, which provides observables for handling asynchronous data streams, commonly used in services and components.
17. Question: What is the Angular CLI used for?
A. Writing component code manually
B. Generating projects, components, and running the development server
C. Designing UI layouts
D. Managing databases
Answer: B
Explanation: The Angular CLI (Command Line Interface) automates tasks like creating projects, generating files, and serving applications for development.
18. Question: Which decorator is used to define an Angular service?
A. @Component
B. @Directive
C. @Injectable
D. @Module
Answer: C
Explanation: The @Injectable decorator marks a class as available for dependency injection, making it a service that can be injected into other classes.
19. Question: What is lazy loading in Angular?
A. Loading all modules at once
B. Deferring the loading of modules until they are needed
C. Automatically refreshing the page
D. Compressing images
Answer: B
Explanation: Lazy loading in Angular loads feature modules on demand, improving initial load time by only loading necessary code when routes are accessed.
20. Question: How can you test an Angular component?
A. Using only browser consoles
B. With tools like Jasmine and Karma for unit and end-to-end testing
C. By manually checking the UI
D. Through server logs
Answer: B
Explanation: Angular applications can be tested using Jasmine for writing tests and Karma for running them in a real browser environment.
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Part 3: Automatically generate quiz questions using OnlineExamMaker AI Question Generator
Automatically generate questions using AI