I have one question in my text book that I do not understand(reading it as a refresher, so no professor to help)
It says to create a class that will implemnt a list of 6 strings. Each element has link to next node.

Class ListNode
string i;
ListNode Next;

Class List
ListNode First;

Any guidance would be much appreciated.

Ok. Looks like you're on the right track (you could even make ListNode a subclass of List).
So now just come up with some methods for accessing the elements. A trick that might help you along is that nothing in your requirement said that this has to be a linked list in the classical sense. For example it could be a private array of ListNodes that is the "man behind the curtain"