Angular 2 Online Quiz

Q 1 - Which of the following is correct about Angular 2 Components?

A - AngularJS had a focus of Controllers but Angular 2 has changed the focus to having components over controllers.

B - Components help to build the applications into many modules.

C - This helps in better maintaining the application over a period of time.

D - All of the above.

Q 2 - Which of the following is true?

A - Angular 2 Services can be used to add more data to an Angular JS class.

B - Angular 2 Metadata can be used to add more data to an Angular JS class.

C - Angular 2 Components can be used to add more data to an Angular JS class.

D - None of the above.

Q 3 - Which of the following is correct about Export Array in Angular 2 Modules?

A - This is used to export components, directives, and pipes which can then be used in other modules.

B - This is used to export services which can then be used in other services.

C - Both of the above.

D - None of the above.

Q 4 - Which of the following is correct about CLI?

A - CLI stands for Command Line Interface.

B - CLI can be used to create Angular JS application.

C - It also helps in creating a unit and end-to-end tests for the application.

D - All of the above.

Q 5 - Which of the following is correct about tsconfig.json?

A - The target for the compilation is generally es5 because most browsers can only understand ES5 typescript.

B - The sourceMap option is used to generate Map files, which are useful when debugging. Hence, during development it is good to keep this option as true.

C - The "emitDecoratorMetadata": true and "experimentalDecorators": true is required for Angular JS decorators. If not in place, Angular JS application will not compile.

D - All of the above.

Q 6 - Which of the following filter is used to convert input to all lowercase?

A - lowercase

B - lower

C - Both of the above.

D - None of the above.

Q 7 - Which of the following filter is used to convert an input string to date format.

A - dateformat

B - date

C - Both of the above.

D - None of the above.

Q 8 - Which of the following is correct about lifecycle hook - ngDoCheck.

A - When the value of a data bound property changes, then this method is called.

B - This is called whenever the initialization of the directive/component after Angular first displays the data-bound properties happens.

C - This is for the detection and to act on changes that Angular can't or won't detect on its own.

D - This is called in response after Angular projects external content into the component's view.

Q 9 - Which of the following is correct about lifecycle hook - ngAfterViewInit.

A - This is called in response after Angular checks the content projected into the component.

B - This is called in response after Angular initializes the component's views and child views.

C - This is called in response after Angular checks the component's views and child views.

D - This is the cleanup phase just before Angular destroys the directive/component.