Just passed this today after 10 months on and off of trying!
Bit disappointed with the score but a wins a win!
My prep was:-
1 . Read and re read Sierra Bates until I was comfortable with all concepts
2. Mock exams. starting with Learnkey master exam. Then Dan Chisolms topic specific questions, then Deepaks' and finally (toughest of all!) Devaka's Examlab. All the time re-reading the book to firm up what I was picking up from the mocks.
3. I wrote virtually NO code. This was a big mistake as I probably took longer to learn stuff straight out of the book and I could have improved my score.
A big thanks to Kathy and Bert for their great book!
Also to Devaka Cooray,Dan Chisolm and Deepak Mala for for the excellent mock exams.
And to all the forumites (Ruben et al) for help with specific questions.