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Difficulty: EasyCloud Service Models (IaaS, PaaS, SaaS)

A software development firm wants to migrate its application stack to the cloud. The developers require an environment where the cloud provider manages the server hardware, virtualization layer, operating system, and software framework updates, allowing the developers to focus entirely on writing and deploying custom code. Which cloud service model best meets these requirements?

  1. A
    Infrastructure as a Service (IaaS)
  2. Platform as a Service (PaaS)Answer
  3. C
    Software as a Service (SaaS)
  4. D
    Desktop as a Service (DaaS)

Answer

Platform as a Service (PaaS)
Platform as a Service (PaaS) provides a turnkey development environment where the cloud provider manages physical hardware, network infrastructure, operating system installations, and runtime environments. This allows developers to write, test, and deploy software without managing underlying platform OS maintenance.

Step-by-Step Solution

1
Analyze the customer responsibilities described in the scenario
The scenario highlights that the cloud vendor handles the hardware, hypervisor, OS, and runtime platform, while the client handles custom application code.
Identifying management boundaries determines the correct cloud service model.
2
Map the responsibility boundaries to standard cloud service models
Platform as a Service (PaaS) places OS and runtime management under provider responsibility while client retains application code control.
PaaS abstracts operating system and infrastructure management away from development teams.

Key Concept

Cloud Service Models (IaaS, PaaS, SaaS) and Shared Responsibility Boundaries
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Topics

Cloud Service Models (IaaS, PaaS, SaaS)

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