Is the Australian Master of Accounting and Finance an immigration major?

Both.

3, 1.5-2 years, it is recommended to study for 2 years to facilitate immigration.

4。 I don't know what a training class is. 1.5 years+one and a half years can also be considered as a two-year course. Usually, I apply for a diploma or master's program of 1 year, and then shorten it to a 6-month course by transferring credits.