In order for Angular to process components in an application, where do the component types need to be registered?

When a service is provided for root and is also added to the provider's configuration for a lazy-loaded module, what instance of that service does the injector provide to constructors in the lazy-loaded module?

In reactive forms, what Angular form class type is used on the native DOM element to wire it up?

How does the emulated view encapsulation mode handle CSS for a component?

Which of the following CSS classes depicts that the state of the input control has been changed by the user?

Which of the following CSS classes depicts that the user has not yet communicated with the input control?

if a conditional expression for an ng-if directive on a div element evaluates to false, then which of the following options correctly describes the result of this event?

Which of the following directives removes or recreates elements of the DOM tree?

A developer def‌ines an image tag whose source is evaluated through a binding expression ()- In relation to the image load event, which of the following statements is/are true? 1) A 404 error will be reported by the image tag initially. 2)To prevent the 404 error, ng-src can be used instead of src. 3) ng-src sets the src value of the image as soon as the corresponding binding value gets evaluated.