Differentiate between the types of cloud service and when each type is best
utilized. There are three primary types of cloud services: software as a service (SaaS),
platform as a service (PaaS), and infrastructure as a service (IaaS). SaaS provides a
complete software solution that is entirely managed by the providing vendor, such as a
hosted mail solution. PaaS provides a platform on which custom-written applications
can run, and it should be used for new custom applications when possible because it
minimizes maintenance by the client. IaaS allows virtual machines to be run on a
provided service, but the entire OS and application must be managed by the client.
IaaS is suitable where PaaS or SaaS cannot be used and in development/ test
environments.
romina
(Romina)
#1