ExpertHard1 markMultiple Choice
AZ-900 · Question 13 · Domain 1.3: Describe Cloud Service Types
A company is migrating a legacy application to Azure. The application requires a specific, older version of Windows Server and custom registry modifications to function. Which cloud service type MUST the company use for this application?
A company is migrating a legacy application to Azure. The application requires a specific, older version of Windows Server and custom registry modifications to function. Which cloud service type MUST the company use for this application?
Answer options:
A.
Infrastructure as a Service (IaaS)
B.
Platform as a Service (PaaS)
C.
Software as a Service (SaaS)
D.
Function as a Service (FaaS)
How to approach this question
Determine which service model gives you full administrative access to the operating system.
Full Answer
A.Infrastructure as a Service (IaaS)✓ Correct
Infrastructure as a Service (IaaS) provides the highest level of control over the IT resources. Because the company needs a specific OS version and custom registry modifications, they need full administrative access to the operating system, which is only available in IaaS (e.g., Azure Virtual Machines).
Common mistakes
Assuming PaaS can run any web application. Legacy apps with strict OS dependencies usually require IaaS.
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