If you would like to study at the University of Zurich or at another university, you usually need to have a sound knowledge of German. To do this, you need to take the TestDaF (Test für Deutsch als Fremdsprache). The European Framework of Reference for Languages defines six language levels (A1, A2, B1, B2, C1 and C2). For the TestDaF, your language skills must range between levels B1 and C1. Even if you have good language skills, the test is quite challenging and therefore it is best to attend a preparation course like the one given at the Sprachen Akademie.