what is default orientation and standard orientation?
You can determine a point as a default orientation and it musn´t be at origin (0,0,0) so you can set a point ex. (10,10,10) as default. In other side the standard orientation is determined by the program.
It seems like you are asking the same thing, or have it worded in a way which does not depict the question you meant to ask.
Standard and default orientations would be the way the object is orientated when you select a specific view. Isometric, front, back, etc.
If you need something else answered please respond and I will do my best to help out.