you get a 1 hour phone interview first. if you pass you will be invited for the onsite job interview which is 8 hours with 8 different people. everyone should say "yes" for you to be approved. the questions can be very hard or simple, you have to be prepared for it.
Questions d'entretien [1]
Question 1
Yes you can have unpredictable questions. But they usually made sense for my position and I could answer all of them :D