Does a MasterPage know what page is being displayed?

Question

When I navigate on a website utilizing MasterPages, does the application know what page I am on? If so, does it store it in an object I can access?

The reason I am

Answer 1

You'd probably just use one of the Request path from within the master page to set the current. I'd probably also have a property on the master page to override it, so that pages without links or something could set it to something reasonable.