I would probably answer with a comment close to "I actually find what XYZ department does to be quite interesting (go into some details about what they do and how that interests you)...I'm also known for finding new ways to look at a problem that improve upon current methodologies, so as long as I'm kept busy, I find it very unlikely that I will be bored"
you might also throw in that you see it as an opportunity to learn and would be quite happy.
Or KaiRu is correct, and you will be bored, but at least you could use the job as a paycheck while you look for another job.