As the first point of contact between a company and the client, a customer service representative must have impeccable communication skills and conflict resolution abilities. Expect your interview to consist of a lot of role-play or "describe a time when..." questions that will test your ability to deal with irate clients, work well under pressure, and always keep a calm and professional composure.
How do you feel about monotonous, boring tasks?
Hmmm...if you say you like them, you sound like an idiot and if you don't like them, seems to knock you out of the running for the job. I mean why bring it up if that isn't part of the job so you're pretty much damned if you do and damned if you don't.
It's not a black and white answer. Saying simply that you either like or don't like monotonous tasks is not the right way to answer this question. It's actually an excellent interview question if you ask me.
I would say it's not monotonous or boring if you enjoy helping people and that is where you would get your gratification and the reason you want the job.