Smooth, it was a combined test and interview (the test was first, with the interview an hour later).
The interview was discussing basic game server topology and issues with distributed client-server networks. It also dealt with my test answers and discussed why I gave the answers I did and how I could improve.
I received a job offer a couple of weeks later, which I unfortunately had to turn down as it was too low (I had already had an offer from another company for £10,000 more per year)- I would've accepted the offer from Frontier but the salary offered would've made it difficult to secure an adequate property in the area.