After successful completion of the distance learning course, and required contact course, the final examinations must be conducted at the German Civil Aviation Department in Brunswick, Germany. These may take 1-3 days (depending on the license/endorsement). All topics are tested on a computer portal and the language (German/English) may be chosen by the student at the start of each day. The alteration of language is not possible during the day, only at the next session (day).

Further details:
http://www.lba.de -> Aviation Personnel