Having full root-level access means that you'll be able to access and change each file on a particular server, which includes all system files, and to change system settings or set up server-side software that may be required by certain scripts and even offline applications in order to work effectively. A server is accessed at the root level with a root user, which has full privileges to do all of the aforementioned things. The root user can also generate various other users. For safety reasons, you are advised to have another account for everyday tasks and to use the root account only if you actually need to perform some task on your hosting server. The root-level access attribute offers you full control over your server from any existing location, as long as you know the user credentials.