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Zorluk: OrtaInfrastructure as a Service (IaaS)

A financial institution is planning to migrate its legacy transaction-processing system to Azure. The system requires a highly customized operating system kernel configuration and direct control over the local storage file system layout to meet strict performance metrics. The institution wants to avoid managing physical server hardware, cooling, and power.

Which cloud service category should the institution choose to host this system?

  1. A
    Platform as a Service (PaaS)
  2. Infrastructure as a Service (IaaS)Cevap
  3. C
    Software as a Service (SaaS)
  4. D
    Private cloud

Cevap

Infrastructure as a Service (IaaS)
Infrastructure as a Service (IaaS) is the correct choice because it provides virtual machines where the customer has full administrative control over the operating system, middleware, and storage layout, satisfying the system's customization and performance requirements. Simultaneously, the cloud provider manages the physical infrastructure, power, cooling, and virtualization layers, fulfilling the requirement to avoid physical hardware management.

Adım Adım Çözüm

1
Analyze the workload requirements regarding control and configuration.
The system requires a customized operating system kernel and direct control over the local storage layout.
Identifying these configuration needs determines the level of control required over the host environment.
2
Analyze the management constraints concerning physical infrastructure.
The institution wants to avoid managing physical hardware, power, and cooling, which implies outsourcing physical management to a cloud provider.
This rules out private cloud or on-premises solutions where the organization must manage physical datacenters.
3
Compare the available cloud service categories (IaaS, PaaS, SaaS) against the control and management criteria.
Infrastructure as a Service (IaaS) provides virtual machines, giving the customer operating system control while the provider manages physical assets. Platform as a Service (PaaS) and Software as a Service (SaaS) do not allow operating system kernel or local disk customization.
Matching the workload's administrative control needs and physical management constraints to the correct cloud model identifies the optimal service category.

Anahtar Kavram

Infrastructure as a Service (IaaS) offers virtualized computing resources where the customer maintains control over the operating system, storage, and applications, while the cloud provider manages the physical hardware and facilities.
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Infrastructure as a Service (IaaS)

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