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ACCA Applied Skills · Performance Management · Uses and control of information

A manufacturing company moves its payroll software from servers it owns to a provider that supplies the software over the internet on a subscription basis. The provider hosts, maintains and upgrades the application, and the company only accesses it through a web browser. Which cloud service model does this describe?

This is Software as a Service. The provider delivers a complete application online on subscription and handles hosting, maintenance and upgrades, while the customer only uses it through a browser. IaaS supplies only infrastructure and PaaS supplies a development platform, so neither matches this arrangement.

  1. AInfrastructure as a Service (IaaS)
  2. BPlatform as a Service (PaaS)
  3. CSoftware as a Service (SaaS)Correct
  4. DPrivate cloud deployment

Explanation

In SaaS the provider supplies a complete application over the internet, managing hosting, maintenance and upgrades, and users simply access it. IaaS provides only virtual hardware such as servers and storage, and PaaS provides a development platform. A private cloud is a deployment model, not a service model, so it does not answer the question.

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