This doesn't directly answer the quesiton, but tha tsounds like a tired baby to me. Does she need more naps or an adjustment to her nap schedule?? Sometimes around that age they start getting really active an dget tired and frustrated much more easily than a few months earlier.
In terms of discipline, overall, I recommend "natural consequences" - you throw a toy, you don't get to play with it. You hit Mommy, Mommy ignores you and walks away, etc. I personally don't use timeouts (like a timeout chair and a timer), although I occasionally need to send my kids to "sit quietly to calm down." I think your reaction needs to fit the crime.
Also, try to offer simple choices - "This toy or that one" or "This snack or that one."
I also feel like an 11 month old needs you to speak for them, and ignoring them isn't always the best answer. If you child cries, just wait it out. Walking away from a non-verbal kid can make things a lot worse. But when she settles down, look her in the eyes and very quietly say, for example, "Good calming down. You may not have a snack right now. You can play with this toy or read a book. What do you want to do?" You need to use words FOR her. Ignoring works a little better when she can say the right thing and chooses not to.
Hope this makes sense. Overall, a good rule of thumb is the more upset she gets, the calmer you need to get... Good luck and enjoy her.