Having full root-level access means that you'll be able to access and modify any file on a selected server, including all the system files, and to change system settings or install server-side software that may be required by certain scripts and even offline applications in order to function properly. A server is accessed at the root level through a root user, who has full privileges to do any of the aforementioned things. The root user can also create various other users. For security reasons, you are advised to have another account for day-to-day tasks and to use the root account only if you actually need to perform a task on the server. The root-level access attribute offers you full control of your server from almost any location, as long as you have the user credentials.