Angular Basics

1/25 In Angular, you can pass data from the child component to the parent component by using:
- @Output()
- @Input()
- Input
- Output
2/25 Async Pipe subscribes to observer and updates expression whenever there is data sent from observer.
- True
- False
3/25 Which component represents “target/host” DOM element inside Directive’s constructor?
- Element
- ElementRef
- Host
- Target
4/25 Which command must be used to build an application in production mode?
- ng build
- ng serve
- ng build --prod
- ng lint
5/25 How can you access a parent component's property from a child component in Angular?
- Using @ViewChild decorator
- Using @Input() decorator
- Using @Output() decorator
- Using @Injectable decorator
6/25 What is the purpose of 'resolve' guard in Angular routing?
- To prevent navigation to a route
- To preload data for a component
- To authorize user access to a route
- To lazy load a module
7/25 In Angular, which service is commonly used for state management?
- HttpClient
- NgRx Store
- Router
- FormsModule
8/25 How do you implement form validation in Angular?
- Using Angular Forms Module
- Using CSS
- Using JavaScript functions
- Using Web APIs
9/25 How is RxJS used in Angular for managing asynchronous data?
- Through Promises
- Through Observables
- Through Async/Await
- Through Callbacks
10/25 What is the role of 'NgZone' in Angular?
- Managing the data flow
- Interacting with RESTful services
- Optimizing performance by controlling change detection
- Routing and navigation
11/25 Which decorator is used for creating a new instance of a service in Angular?
- @Injectable({ providedIn: 'root' })
- @Component
- @NgModule
- @Directive
12/25 In Angular, what is the primary use of the 'environment.ts' file?
- To store global variables
- To configure routing
- To define components
- To manage styles and themes
13/25 How can you implement internationalization (i18n) in an Angular application?
- Using Angular CLI's i18n tools
- Through CSS
- Using external libraries only
- By defining multiple components for each language
14/25 In Angular, how can you handle HTTP request errors in a service?
- Using try-catch blocks
- Using the catchError operator in RxJS
- Using if-else statements
- By setting HTTP headers
15/25 Which Angular lifecycle hook is called after Angular fully initializes a component's view?
- ngOnInit
- ngAfterViewInit
- ngOnChanges
- ngOnDestroy
16/25 Which Angular CLI command is used to generate a service?
- ng generate service
- ng create service
- ng add service
- ng new service
17/25 In Angular, what is the primary role of the 'RouterLink' directive?
- To link to external websites
- To navigate between different views
- To reload the current page
- To pass data to routes
18/25 How can you create a custom validator for a form field in Angular?
- By using an HTML attribute
- By creating a function that returns a validation object
- By using CSS
- By using the 'validator' directive
19/25 What is the main benefit of using Angular's Reactive Forms over Template-Driven Forms?
- Easier syntax
- More control and flexibility in handling form logic
- Automatic data binding
- Built-in validators
20/25 In Angular, what is the use of the 'environment.prod.ts' file?
- To define production-specific variables
- To configure routing in production
- To override component styles in production
- To list production-only dependencies
21/25 What is the purpose of the 'CanDeactivate' guard in Angular routing?
- To prevent unauthorized access to a route
- To preload data before navigating to a route
- To confirm navigation away from the current route
- To dynamically load modules for a route
22/25 How can Angular elements be used in a project?
- To create Angular-specific syntax in HTML
- To extend HTML with custom elements and behaviors
- To directly manipulate the DOM
- To integrate Angular with server-side rendering
23/25 What is the primary function of the 'Renderer2' service in Angular?
- To perform server-side rendering
- To manage rendering of components
- To handle routing and navigation
- To render data-bound properties
24/25 Which Angular CLI command is used to analyze the size of the application bundles?
```
ng build --prod --stats-json
```
- True
- False
25/25 In Angular, what is the purpose of the 'ng-template' directive?
- To define templates that can be used with structural directives
- To inject external HTML content
- To create reusable components
- To handle form submissions
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Angular Basics

1/25 In Angular, you can pass data from the child component to the parent component by using:

2/25 Async Pipe subscribes to observer and updates expression whenever there is data sent from observer.

3/25 Which component represents “target/host” DOM element inside Directive’s constructor?

4/25 Which command must be used to build an application in production mode?

5/25 How can you access a parent component's property from a child component in Angular?

6/25 What is the purpose of 'resolve' guard in Angular routing?

7/25 In Angular, which service is commonly used for state management?

8/25 How do you implement form validation in Angular?

9/25 How is RxJS used in Angular for managing asynchronous data?

10/25 What is the role of 'NgZone' in Angular?

11/25 Which decorator is used for creating a new instance of a service in Angular?

12/25 In Angular, what is the primary use of the 'environment.ts' file?

13/25 How can you implement internationalization (i18n) in an Angular application?

14/25 In Angular, how can you handle HTTP request errors in a service?

15/25 Which Angular lifecycle hook is called after Angular fully initializes a component's view?

16/25 Which Angular CLI command is used to generate a service?

17/25 In Angular, what is the primary role of the 'RouterLink' directive?

18/25 How can you create a custom validator for a form field in Angular?

19/25 What is the main benefit of using Angular's Reactive Forms over Template-Driven Forms?

20/25 In Angular, what is the use of the 'environment.prod.ts' file?

21/25 What is the purpose of the 'CanDeactivate' guard in Angular routing?

22/25 How can Angular elements be used in a project?

23/25 What is the primary function of the 'Renderer2' service in Angular?

24/25 Which Angular CLI command is used to analyze the size of the application bundles?

25/25 In Angular, what is the purpose of the 'ng-template' directive?