At the IT University (as well as any other Danish universities) it is very important to pose critical questions about the material you work with, adapt a critical approach to statements and explanations as well as being able to validate the source of information. You are expected to be aware of your own understanding of and opinions on all matters relevant to the subject, and to be able to express and present arguments for these opinions.
Lecturers are probably less autocratic
The relationship between students and lecturers may be very different from what you are used to. The lecturers are probably less autocratic, and you can call them by their first name.
If you are confused about anything during lectures and exercises, you are expected to ask questions to get things clarified. It is also expected that you will discuss matters with the lecturers. Generally, the lecturers do not want to be seen as infallible oracles of knowledge and will not be offended by opposing arguments or opinions. Rather, they will regard it as an academic challenge and perceive critical questions as a sign of independent thinking.
In some courses the lecturer will not be present at the practical exercises. Instead assistants will be assigned to help. The lecturer’s assistants are students like you, who have taken the course before and often have a general interest in the subject. You should make good use of their competences and use them as a resource to help improve your studies.