Hi Mike,
Part one is a multi choice
test, and you get your results as soon as you complete the exam. You get a panel on the screen telling you your percentages in each category.
You should also get a printed report telling you the same information, and an overall percentage with pass or fail.
Part two is the assignment and part three is an essay designed to confirm that you did your assignment (and didnt just copy someone elses). When Sun have received both parts 2 and 3, they check that your answers for part 3 do match what has been submitted in part 2, and they check that part 2 does meet their criteria. Sun state that you should get your results within 6 weeks. It seems that the average is around 5 weeks.
Regards, Andrew