I made a post about PMP certification requirements -- what you need before you can take the PMP exam -- here:
https://coderanch.com/t/131026/Agile/PMP-Project-Task-Experience As far as examples go, yes, we put a lot of effort into making Head First PMP as full of examples as we could. Project management concepts really don't make sense in a vacuum -- you need to see what they look like when they're applied to a project. That's why we included many scenarios to demonstrate the various processes, tools, techniques and practices.
Andrew Stellman
Author of Head First Agile, Learning Agile, Beautiful Teams, Head First C#, Head First PMP, and Applied Software Project Management (O'Reilly)