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ACCA Applied Knowledge · Business and Technology · Technological factors

A company moves its core accounting and ordering applications from its own servers to a supplier's platform, paying a monthly fee and accessing the software through a web browser, with the supplier handling maintenance. Which cloud service model is this?

This is software as a service. The company uses finished applications through a browser for a recurring fee while the supplier maintains them. IaaS would supply only infrastructure such as servers, and PaaS would supply a development platform, neither of which matches the situation.

  1. ASoftware as a service (SaaS)Correct
  2. BInfrastructure as a service (IaaS)
  3. CPlatform as a service (PaaS)

Explanation

SaaS delivers complete applications over the internet for a subscription, with the supplier managing the underlying infrastructure and maintenance. IaaS provides only computing infrastructure, and PaaS provides an environment for developing applications; the company here simply uses finished software.

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