If you are placed in Operations you can work in Parking, Park Greeting or Attractions. You will be placed in one area and likely will stay there for your entire program unless you are redeployed to another area. So, your chances of working as many attractions as possible are very slim, unless you are placed in an area where the rotations include several attractions. These generally include places like Tomorrowland and some areas of EPCOT and the Studios.
And to the parent who is wondering if your daughter should go. The answer to that is, let her decide. If she chooses to go, she will have a life changing experience. She may or may not love the program, but it will change her. 99 % of the time for the better! She'll come home with a Fortune 100 company on her resume and a lot more confidence. But the program isn't for everyone. I encourage her to give it a try and if she hates it, she can always leave. That's my advice!