If you are an international, non-resident studying at AUD you require a Student Residence Visa to allow you to live and study in the U.A.E. Students have the option to apply for a Residence Visa with AUD or alternatively you can investigate other options through the UAE embassy in your home country (this is not applicable for visiting students. All Visiting students are required to apply for an AUD student residence visa which covers health insurance; regardless, of the passport they hold).
Here are some helpful points to note:
For full details refer to Visa Information for all Applicants and Visa Information for Visiting Students