So here's something that doesn't exist out in the wild any more - and fortunately I recorded this for posterity's sake - sample exam questions that used to be in the exam guide - way back a few months ago when Salesforce had a PDF of the exam guide, rather than the HTML version that they have out now. Lucky you - you get this sample exam question to help prepare you for the exam. Here's that question:
Universal Containers needs to track the Manufacturer and Model for specific car companies.
How can the system administrator ensure that the selected Manufacturer provides the values available for the Model?