WreedeWol... V1V2...
First of all, I don't want to sound too mean, but a quick search in pprune will bring you tons of info... But just to be nice, here is some quick info...
Mulitple Choice Job Knowledge Test... it cover all the topics that is in the ebooklet that is send to you by CX via email... this book is indeed very basic, in fact it is so basic that it does not actually explain everything in details and a lot of information is left out on purpose... especially those relating to different instruments, it never actually explain to you how it works... However, that is exactly the point that CX is making / trying to make... you got to do some work on your own, some internet search on those specific topics will provide you will tons of information that will allow you to pass the test... it is also a way for CX to make sure that you are the type of person who will go out of the way and get as much knowledge as you need to get up to standard... Because the reality is that, this is how CX operates, no one is going to spoon feed you info at CX...
As for the reasoning test... check out this qantas test...
http://www.qantas.com.au/infodetail/...ent/QTests.pdf
If you look at the Diagramatric and the Spatial Reasoning section, they are pretty similar to what you will see in the CX test... however the CX one is slightly more complex than the Qantas one... but it is similar types of test / questions...
Finally, as for the interview... again a quick search will give you tons of info... however, interview questions are tailor to each applicants background... and they can ask you anything, absolutely anything aviation related and anything about your personal / personality (within the limits of the law of course)...
Good luck!