Having full root-level access signifies that you will be able to access and update every file on a selected server, which includes all system files, and to change system settings or set up server-side software that may be necessary for specific scripts and even offline applications to function efficiently. A server is accessed at the root level through a root user, which has full privileges to perform any of the aforementioned tasks. The root user may also create other users. For safety reasons, you're advised to have one more account for everyday tasks and to use the root account only if you actually need to do a specific task on your server. The root-level access attribute will provide you with full control over your server from any existing location, provided that you know the user credentials.
