When you arrive the required special lessons, you already made a good progress at your driving education. At the overland sessions you get know the rules for driving on country roads.
An important consideration is to drive with the right speed. You are not allowed to exceed the speed limit, but you also should not go to slow. By the way there are road sections where the speed limit is too dangerous or not possible to drive.
Overtaking is a topic, too. But you will see, that the track for overtaking is very long, so that a safe overtaking of trucks or other cars is not often possible.