From memory, when I originally did mine it was oral and translating .... there were two tests, one through the UNSW and then during the interview process- one with QF.
When I went through, the 'Advanced Fluency' required was Level 4 .
Level 1 being conversational fluency and Level 6 being native fluency (ie raised with the language) ... so level 4 is somewhere around the top end of fluency in lanaguage.
Contact the UNSW school of languages - they should be able to clarify ... it has been over 5 years since I did mine !!
Hope this helps
