Xamarin Certification Xamarin Certification 3

Question 1

Which Xamarin.Forms element is used to navigate between pages using a stack-based model?

Accepted Answer

NavigationPage

Answer

NavigationPage provides a hierarchical navigation experience using a push/pop stack.

Question 2

What does the [Preserve] attribute do in a Xamarin.iOS project?

Accepted Answer

Prevents the linker from stripping a type or member

Answer

[Preserve] instructs the iOS linker to retain types or members that would otherwise be removed during linking.

Question 3

Which class in Xamarin.Forms is used to define reusable UI components with their own XAML and code-behind?

Accepted Answer

ContentView

Answer

ContentView allows you to create reusable custom controls with XAML and a code-behind class.

Question 4

In Xamarin.Forms, which method on INavigation pushes a page onto the navigation stack asynchronously?

Accepted Answer

Navigation.PushAsync()

Answer

PushAsync() pushes a new page onto the navigation stack and returns a Task.

Question 5

Which Xamarin.Forms trigger fires when a bound property reaches a specified value?

Accepted Answer

DataTrigger

Answer

DataTrigger monitors a data binding expression and applies setters when the value matches a specified condition.

Xamarin Certification Practice Test