Data Structure Linked list Question:

First off, in case you don't already know, the word 'iterative' when used in problems like these basically means that we use some sort of loop to solve the problem - whether it's a while loop, a for loop, or whatever type of loop you desire to use. We choose to use a while loop to come up with a solution.
Let's assume that we are going to start reversing the linked list starting from the very first node - the head node. What it basically comes down to is changing pointers from one node to the next so that the entire linked list becomes reversed. There is definitely a process - an algorithm - that we will want to follow in order to do that.