The question was some thing like the solution to their current problem. They asked me a solution for combining the features of one open source product in to another and how to host and access it from open vpn dipository. It was a combination of technical and architectural question.
Sigiloso
I explained them the architecture of symphony framework and explained how we can integrate cakephp features using doctorine ORM. And then explained the process of hosting an setting up the open source open vpn dipository.