To access to each Degree program you have to take a mandatory, but not selective, test that allows to evaluate if the student has the basic knowledge to attend the courses.
The test is called “entrance exam” or “access test”.
If the entrance exam proved that the student has skills under the minimum required, s/he will be provided with support material in order to reach the competences required. The test does not preclude enrolment, but helps to know the level of general knowledge.