Depends on the municipality. Some give students laptops from the school, some support students buying their own devices with x euros, some do nothing to help students secure a device.
It's important to note that they've made guidelines on what sort of devices are supported for the exam and the way it's done. It completely rules out any of the current tablets and pretty much narrows it down to a traditional laptops running x86(or amd64) processors. They've also got pretty good rules for setting up the exam environment.
That being said, I think there will be plenty of problems to sort through.