Interview prep for a role in an established start-up

I have a preliminary 'conversation' with a product launcher for an uber-like start up that recently completed a Series C. As far as I know, I would be the first r one of the first dedicated investments guy hired there.
The role is for someone with around 2-3 years of experience.
Just wanted to know what I should brush up on. They also have an analytics test so if anyone has an idea on what VC's usually provide in terms of that, that would be much appreciated.