Swift Questions:

1) iOS and OS share a number of common libraries and frameworks.

True / False

2) An iOS app can also run directly on macOS X.

True / False

3) If you have imported the UIKit framework, is the Foundation framework also imported?

True / False

4) All View Controller classes must be a subclass of UIViewController.

True / False

5) A callback method is not invoked by the app in which the callback method is defined.

True / False