Study for Sair Gnu/Linux Cert at Unix Review.  They have The Top 50 Things
to Know to Pass the Sair Exam 103 at the below link. 
 http://www.unixreview.com/articles/2001/0105/0105c/0105c.htm
 There are other lists of the top 50 things for Exam 101
http://www.unixreview.com/articles/2001/0103/0103a/0103a.htm
and Exam 102
 
http://www.unixreview.com/articles/2001/0104/0104b/0104b.htm
That I found by using their search function.

Later,
Brian Kelsay

"If at first you don't succeed, skydiving is not for you."