It depends on what you booked! You might have booked a guaranted cabin which means you will have a cabin def. for the grade you have booked but not any lower, so if you have booked inside cabin on deck 3 you cd be anywhere on deck3. but the upgrade fairy could put you outside balcony! you r cabin is in the hands of the fairies, if there is a specific area of ship you want it might be better to book it, hope you have a great time.
I've no idea.