Good job! Right now you should have a clear picture about how a request is handled in ZF2, how the components are involved in the process, and how they are used to complete the request. These components are the basis of ZF2, so it's really important that you understand how to use them and how to interact with the data using these components.
We discovered how to bootstrap the application and the options we have to customize it. We have also learned how the request object holds the data and how to access them. The chapter also showed how the router will use the request data and the set of routes we configure to determine which controller and action should be executed. Also, we saw how the dispatch process is executed and how the actual controller/action gets called. In the meantime we explored the different solutions and helpers ZF2 provides for some common problems and how they help us to solve them. We finally saw the last step of the request, the response.
Now with all this knowledge...