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Difficulty: EasyCloud Architecture and Deployment Models

An organization hosts a customer database in a cloud environment where the cloud provider manages the physical server hardware, data center access, and hypervisor virtualization layer. The organization's internal IT team remains responsible for configuring, updating, and patching the guest operating systems and application software. Which cloud service model is the organization currently using?

  1. Infrastructure as a Service (IaaS)Answer
  2. B
    Platform as a Service (PaaS)
  3. C
    Software as a Service (SaaS)
  4. D
    Identity as a Service (IDaaS)

Answer

Infrastructure as a Service (IaaS)
Infrastructure as a Service (IaaS) provides virtualized computing infrastructure over the cloud. Under the shared responsibility model for IaaS, the cloud provider secures the physical data center, networking gear, and hypervisors, whereas the enterprise customer retains full responsibility for managing the guest operating system, application patches, and network access rules.

Step-by-Step Solution

1
Analyze the management boundary described in the scenario.
The cloud provider manages hardware and virtualization; the customer manages guest OS and application components.
Determining who manages the operating system layer defines the cloud service model boundary.
2
Map the responsibilities to the standard cloud service models.
Customer control of operating systems combined with provider control of physical hardware aligns specifically with IaaS.
IaaS supplies raw virtualized compute resources where the tenant maintains OS-level control.

Key Concept

Cloud Shared Responsibility Model in IaaS
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Topics

Cloud Architecture and Deployment Models

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