Xamarin Forms quiz medium level

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Test description

This test measures your medium knowledge of Xamarin, the framework used for developing mobile applications. The quiz covers all key concepts related to Xamarin app development.
Topics: XAML, backgrounding, bindings, styling, shared code vs. specific code, native development, etc.

Sample questions

1
Suppose you want to complete an asynchronous task that will update a Label.
How would you write this code (no MVVM for simplicity)?