Adaface Sample Angular Questions

Consider the following component, which can be used to model a marker and the ink it writes.

Which statements about the given component are true?

A: The 'marker' parameter of the @Input('marker') declaration does not alter the interface of the component.
            B: Component, Input and Output are all required imports for this component.
            C: Both marker and ink inputs must be provided when including the MarkerInk component in a template.
            D: When included in a components template, the MarkerInk component creates a span containing the interpolated marker's name and a button bound to writeInk().
            E: The MarkerInk component can be included in another template using the <MarkerInk> tag.

Review the following Angular components:

What will be rendered to the DOM based on the following markup usage?

Review the following classes that need to act as dependencies in an Angular project:

Service X is provided to SampleComponent as shown here:

Service Y is provided to SampleModule as shown here:

Service Z is provided to AnotherSampleModule as shown here:

Pick the correct statements:
            
            A: Service X is registered with specific ngComponent. Any new instance of that component will have new instance of Service X.
            B: Single, shared instance of Service X is created and is injected into any class that asks for it.
            C: A new instance of Service Y is created and injected into any component that asks for it in SampleModule.
            D: Service Y is registered with specific ngModule and the same instance of Service Y is available to all components of SampleModule instead of creating one for every component in the SampleModule.
            E: A new instance of Service Z is created and injected into any class that asks for it.
            F: Angular creates a single, shared instance of Service Z and injects that into any class that asks for it.