The interview will probably only take 1 minute.
5 tips for the OP:
1. Be well rehearsed in all of the correct answers.
2. Show no nervousness or fear.
3. Yawn a lot and comment on the longest trip imaginable. (Yes, yawning works wonders since nervous people won't be yawning)
4. Be friendly and honest.
5. Never over-answer question as this indicates fiction.
I've been successfully yawning at the last 60 entry interviews ever since I reacted nervously to a question many years ago. Oddly, it was about being on a farm in Germany since we ate at a restaurant on a "farm"! This resulted in a detour to a second interviewer. Never again.