MCSD Developing Windows Store Apps 2

Question 1

What does the Windows Store app sandbox model restrict?

Accepted Answer

Direct access to system resources without declared capabilities

Answer

The sandbox model restricts apps from accessing system resources (files, cameras, etc.) unless declared in the app manifest.

Question 2

Which Windows Store app lifecycle state means the app is visible and receiving input?

Accepted Answer

Running

Answer

The Running state means the app is in the foreground, fully active, and receiving user input.

Question 3

What is the purpose of the `async`/`await` pattern in Windows Store apps?

Accepted Answer

To keep the UI responsive while waiting for long operations to complete

Answer

Using `async`/`await` in Windows Store apps prevents the UI thread from blocking during I/O or network operations.

Question 4

What is a Windows Store app tile used for?

Accepted Answer

The app's live icon on the Start screen that can display dynamic content

Answer

App tiles are the Start screen icons for Windows Store apps and can display live, updating content via live tiles.

Question 5

Which API is used to send toast notifications in Windows Store apps?

Accepted Answer

ToastNotificationManager

Answer

`ToastNotificationManager` is the WinRT class used to create and display toast pop-up notifications.

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