Can't comment on Poland but it is down to individual countries as to how they allow or not CAPs or Jeppesen. A number of non-UK countries only allow appendix/annexes given out in the exam.
The UK has certainly asked questions on the LRJT(A330) in FP & MB. This is not to say they appear at every exam sitting though.
The CAA/EASA have always stated as a professional pilot you might be required to extract data from any aircraft data manual not just the ones in CAPs you have been studying for 3 months. However this might come as shock if the first time you see it is in the exam given time pressure.