I'm not going to do your homework for you. You learn nothing, I don't need the practice and I'm sure your lecturer doesn't condone other people doing your work for you either (I'm also studying at UNISA, I'm pretty sure I know the person who teaches that course)
What have you got so far?
Where exactly are you stuck?
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability