Xamarin Certification Trivia 3

Question 1

What is the primary purpose of the Xamarin.Essentials library?

Accepted Answer

Cross-platform native device APIs

Answer

Xamarin.Essentials provides a single cross-platform API for accessing native device features like GPS, sensors, and secure storage.

Question 2

In Xamarin.Forms, which layout positions children in a single row or column?

Accepted Answer

StackLayout

Answer

StackLayout arranges child views in a single line, either horizontally or vertically.

Question 3

What file extension is used for Xamarin.Forms XAML files?

Accepted Answer

.xaml

Answer

Xamarin.Forms uses the .xaml file extension, the same as WPF and UWP XAML files.

Question 4

Which binding mode in Xamarin.Forms updates the source when the target property changes?

Accepted Answer

OneWayToSource

Answer

OneWayToSource binding updates the source (ViewModel) when the target (UI) property changes.

Question 5

What is the Xamarin.Forms equivalent of a native iOS UITableView or Android RecyclerView?

Accepted Answer

ListView

Answer

ListView is the traditional Xamarin.Forms control for displaying scrollable lists of items, analogous to platform list views.

Xamarin Certification Practice Test