A cloud hosting service means that each and every part of your online presence will be taken care of by an independent server. For instance, your files and databases will be managed by different machines and since just a single type of processes will run on a server, every single machine will perform better and will use its resources to the fullest. Whether you'll get a true cloud service or not also depends on the control panel that you'll use to handle your account. Because most control panels were made to function on a single server, they are unable to work on a cloud platform whatever a given Internet hosting provider could advertise. In case one service stops responding, the entire server could go offline, so your Internet sites will not be accessible. That's why you should check what service you will actually get if you are looking for cloud internet hosting before you purchase anything.