Angular JS MCQs with answers Page - 21

Here, you will find a collection of MCQ questions on Angular JS. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. How do you protect a route using authentication guard?

  • (A) Use canActivate guard
  • (B) Use canDeactivate guard
  • (C) Use resolve guard
  • (D) Use preloadingStrategy

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Q. Which Angular service is used to make HTTP requests?

  • (A) Http
  • (B) HttpClient
  • (C) HttpRequest
  • (D) HttpService

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Q. What does the AsyncPipe do?

  • (A) Converts Observable to Promise
  • (B) Subscribes to Observable and returns latest value
  • (C) Unsubscribes from Observable automatically
  • (D) Both 2 and 3

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Q. Which decorator is used to create a directive in Angular?

  • (A) @NgModule
  • (B) @Component
  • (C) @Directive
  • (D) @Injectable

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Q. Which Angular built-in pipe is used to format dates?

  • (A) date
  • (B) time
  • (C) datetime
  • (D) formatDate

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Q. How do you create a custom pipe in Angular?

  • (A) Using @Pipe decorator
  • (B) Using @Directive decorator
  • (C) Using @Component decorator
  • (D) Using @Injectable decorator

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Q. Which file typically bootstraps the Angular app?

  • (A) main.ts
  • (B) app.component.ts
  • (C) app.module.ts
  • (D) index.html

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Q. Which decorator is used to define an Angular module?

  • (A) @NgModule
  • (B) @Component
  • (C) @Directive
  • (D) @Injectable

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Q. What is lazy loading in Angular?

  • (A) Loading modules only when needed
  • (B) Loading all modules at app start
  • (C) Loading modules in parallel
  • (D) Loading modules via service workers

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Q. Which Angular decorator is used to provide a service at the root level?

  • (A) @Injectable({ providedIn: 'root' })
  • (B) @Service()
  • (C) @RootService()
  • (D) @Provider()

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