I took this exam this morning.
It was 30 multiple choice questions, with 1.5 hours allowed.
I passed with a 77%, which is much lower than I would have liked, but honestly, I was happy to have passed it.
This was a really tough exam. I debated over several questions. They were asking very specific things about the standard from almost a pure implementation standpoint. I think there were only 1 or 2 questions that were asking me a specific fact. Instead every question was scenario based and there were pretty much always 2 answers that would have possibly worked.
This was much more difficult than the Foundation exam that I took last week. I really feel that with a bit of reading anyone could pass the Foundation exam, however, to get through the Advanced one would require some hands-on work with ISO/IEC standards. This exam was probably as tough or tougher than any of the ITIL v3 Intermediate exams, and just beneath my experience from several years ago with the ISO/IEC 20000 Consultant's Certification, which was the absolute toughest exam I've ever taken.
I used the actual 27k* standards and specifications as study material, as well as this book
Implementing Information Security based on ISO 27001/ISO 27002 (Best Practice) (9789087535414): Alan Calder: Books . I don't think that the book was really all that helpful in this case. What helped me the most was exposure in the past to ISO/IEC 20000 implementations as well as some exposure to ISO/IEC 27K implementations.
MS