If you possess a valid Driver's License from another country, you will need to acquire a SC Driver's License if you plan to stay in South Carolina for prolonged period of time. Visit the official SC DMV website for more information about out-of-country licenses and the procedures you will need to follow: http://www.scdmvonline.com/DMVNew/Question Category
No. You do not have to take the SC Driving Exam. You will need to replace your out-of-state license for a SC Driver's License. You have 90 days to do this. Additionally, you will have to pass a vision test.