It's a good question, but the answer will be very case-dependent. At the extreme, I can imagine two situations, and I have heard of both:
1. (good situation) You are a "project support" analyst, because the team was understaffed and they need help with some basic research/modelling etc. You work in the same room as other team members. You do the most junior work but it changes every day. <<- In this situation, this would be a great opportunity. You would be able to prove yourself and get a real insight into the work of a consultant. Not only will people be able to recommend you when you apply (priceless!), but also you will likely perform better in the interviews.
2. (bad situation) You are a "temp". The team needs to call 10000 butchers, or enter data from 50000 surveys. Analysts on the team can't possibly do it, so they need extra humans. You will get a laptop, a separate room and you will do this job 9-5 for a couple of weeks. Needles to say, this is something much less exciting. It can still be beneficial if you have nothing else to do, as you will practice your cold calling skills etc., but it's not something you want to jump on.
To sum up, I would clarify what kind of situation we are talking about. It can be exciting!
Best of luck,