I believe CDO / MBS / ABS were taken out of the curriculum 2 years ago
But one of the Fixed Income (the 3rd FI reading) EOC questions involves CDO and senior tranche and junior tranche and all that. Was this a mistake that they forgot to remove the EOC? Or do we have to know how to do this?
I suggest that you e-mail CFA Institute and ask them, then report back here. I believe that the question is there in error, but you’re better off being safe.