About the issue of credit exemption when applying to the University of Sydney

Yes, even if you study in Sydney for a five-year visa, it will be calculated based on how many credits you have in the academic system. If you reduce or reduce the credits, you will not meet the credits of the two-year academic system and will not be able to obtain a work visa. Of course it will have an impact on immigration, because one year of work is worth 5 immigration points. If you can't get a work permit, your immigration points may not be enough.