Angular Basics

1/25 In Angular, you can pass data from the parent component to the child component by using:
- @Output()
- @Input()
- Input
- Output
2/25 Which directive modifies DOM hierarchy?
- Structural directive
- Attribute directive
3/25 How many instances of service will be created if you provide a custom service in two components’ “providers” section of @Component decorator?
- 1
- 2
- 3
- 4
4/25 Custom pipe can modify actual value of variable apart from different presention in HTML.
- True
- False
5/25 Which method of RouterModule should be called for providing all routes in AppModule?
- RouterModule.forChild
- RouterModule.forRoot
- RouterModule
- RouterModule.import
6/25 Which command is used to run the Static Code analysis of Angular application?
- ng build
- ng profile
- ng lint
- ng serve
7/25 Which decorator does the directive use to listen to the host/target events?
- @Listener
- @HostListener
- @OnListener
- @TargetListener
8/25 There can be more than one <router-outlet> element in Angular application.
- True
- False
9/25 Which CLI command is used to generate a new Angular module?
- ng generate module
- ng create module
- ng build module
- ng start module
10/25 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
11/25 In Angular, which service is commonly used for state management?
- HttpClient
- NgRx Store
- Router
- FormsModule
12/25 How is RxJS used in Angular for managing asynchronous data?
- Through Promises
- Through Observables
- Through Async/Await
- Through Callbacks
13/25 What Angular feature can be used for performance optimization by preventing unnecessary change detection?
- NgZone
- ChangeDetectionStrategy.OnPush
- NgModule
- NgClass
14/25 Which TypeScript feature is commonly used in Angular for type-checking and future JavaScript features?
- Classes and Interfaces
- Arrow functions
- Promises
- Modules
15/25 Which command is used to update Angular to the latest version?
- ng update
- ng upgrade
- ng install latest
- ng new version
16/25 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
17/25 How can you create a custom structural directive in Angular?
- Using the @Directive decorator
- Using the @Component decorator
- Using the @NgModule decorator
- Using the @Pipe decorator
18/25 What is the primary use of 'Subject' in RxJS as used in Angular?
- To create an observable
- To create a promise
- To perform HTTP requests
- To manage state
19/25 What is the use of the 'ngFor' directive in Angular?
- To create a custom event
- To repeat a template for each item in a list
- To hide or show an element
- To bind data to a property
20/25 In Angular, which decorator is used to create a new HTTP interceptor?
- @HttpInterceptor
- @Injectable
- @Interceptor
- @NgModule
21/25 How can you optimize an Angular application for better performance?
- Using lazy loading for modules
- Increasing the number of HTTP requests
- Avoiding use of the async pipe
- Disabling change detection
22/25 Which command is used to add a new service in Angular using the CLI?
```
ng generate service my-new-service
```
- True
- False
23/25 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
24/25 In Angular, how are directives applied to HTML elements?
- Using HTML attributes
- By directly manipulating the DOM
- Using JavaScript functions
- Through Angular components
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 parent component to the child component by using:

2/25 Which directive modifies DOM hierarchy?

3/25 How many instances of service will be created if you provide a custom service in two components’ “providers” section of @Component decorator?

4/25 Custom pipe can modify actual value of variable apart from different presention in HTML.

5/25 Which method of RouterModule should be called for providing all routes in AppModule?

6/25 Which command is used to run the Static Code analysis of Angular application?

7/25 Which decorator does the directive use to listen to the host/target events?

8/25 There can be more than one <router-outlet> element in Angular application.

9/25 Which CLI command is used to generate a new Angular module?

10/25 What is the purpose of 'resolve' guard in Angular routing?

11/25 In Angular, which service is commonly used for state management?

12/25 How is RxJS used in Angular for managing asynchronous data?

13/25 What Angular feature can be used for performance optimization by preventing unnecessary change detection?

14/25 Which TypeScript feature is commonly used in Angular for type-checking and future JavaScript features?

15/25 Which command is used to update Angular to the latest version?

16/25 What is the role of 'NgZone' in Angular?

17/25 How can you create a custom structural directive in Angular?

18/25 What is the primary use of 'Subject' in RxJS as used in Angular?

19/25 What is the use of the 'ngFor' directive in Angular?

20/25 In Angular, which decorator is used to create a new HTTP interceptor?

21/25 How can you optimize an Angular application for better performance?

22/25 Which command is used to add a new service in Angular using the CLI?

23/25 What is the purpose of the 'CanDeactivate' guard in Angular routing?

24/25 In Angular, how are directives applied to HTML elements?

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