A cloud hosting service means that each and every part of your world-wide web presence will be maintained by an individual server. For instance, your files and databases will be managed by different machines and since only one kind of processes will run on a server, every single machine will perform better and will use its system resources to the fullest. Whether you will get a true cloud service or not also depends on the control panel that you will use to manage your account. Because most control panels were made to work on a single server, they are unable to work on a cloud platform regardless of what a given web hosting service provider may advertise. In case one service stops responding, the whole server could go offline, so your websites won't be accessible. That's why you should check what service you will actually receive in case you are looking for cloud internet hosting before you buy anything.