What is Rx.Net?

How many tile sizes does Windows Phone 8 support?

What User Interface (UI) framework is best suited for games?

Which initialize a new instance of the FrameworkElement class?

Which property names returns the memory usage of the current application in bytes?

How can you specify your app's required capabilities and hardware requirements?

For Windows Phones 7.0, what is the app memory limit for phones with 256 MB of memory?

Which tool do you need to establish serial or USB connectivity on the 7.1 OS without running Zune software?

What might happen if your app tries to access an API that it does not have the security capability to use?

What file is the default starting page of a new Windows Phone application?

Which test would you run in the testing phase of creating an app?