What is the difference between the root and a standard user?
The main difference between the different classes of users is based on what which permissions that user has. A user can only affect the files for which he or she has permission. The root user has the ability to control anything, including files owned by other users. Because of this power the root user has, the root user does not have FTP or email access and can only access the server through SSH (either directly using an SSH key for the root user or indirectly by logging in as the Administrative User and then verifying you operating as the root user.
