I interviewed with these two firms for an internship position during the summer after my sophomore year. I didn't get offers but I might be able to interview with those same groups again for an internship during my junior summer.
Would they ask me the same interview questions that they did the first time around? Or would the interview differ a lot from the first one?















Not a big deal
It depends on the firm. Even with BB, if you interviewed through campus, they will remember you from last year, which may be an advantage to you if you can move the conversation in the right direction. Be prepared to answer questions about what you did over the summer instead, why you chose to go that path (if different from ibanking), and why you think you are more qualified this year as opposed to last.
Of course being that you were a sophomore last year, I don't think its a big deal at all, as it is quite rare for sophomores to get legitimate banking internships.