Explore cloud services and their characteristics

- [Instructor] Let's review the primary service models again … but this time in more depth … and including a look at each of their characteristics. … The three primary cloud models … are Infrastructure as a Service, or IaaS, … Platform as a Service or PaaS, … and Software as a Service or SaaS. … The Infrastructure as a Software model allows you … to rent your hardware … such as servers, storage and networking … from the data center. … The host provides and manages the equipment, … keeping it all operational … and it's kept separate … from other customers … because of virtualization. … You can manage the guest operating systems … using remote desktop … or a third-party app and any software … such as databases or application servers running on them. … You'll also assume full responsibility … for keeping your applications running. … Examples of IaaS include Amazon EC3, … Microsoft Azure, Rackspace … and Google Compute Engine. … These organizations have invested billions … of dollars to help build huge data centers …