A cloud hosting service means that each and every part of your world-wide web presence will be taken care of by an independent server. For example, your files and databases will be managed by separate machines and since just a single type of processes will run on a server, each machine will perform better and will use its resources to the highest. Whether you will get a real cloud service or not also depends on the control panel that you will use to handle your account. Since most control panels were intended to operate on a single server, they cannot work on a cloud platform whatever a given Internet hosting service provider may advertise. In the event that one service stops responding, the entire server could go offline, so your Internet sites won't be accessible. This is the reason why you should check what service you'll actually receive in case you are looking for cloud web hosting before you buy anything.