350-601 Question #444: Real Exam Question with Answer & Explanation

Question

A company plans to migrate some of its services to the cloud. The company does not want to manage or control the underlying cloud infrastructure. It also wants to maintain control over the deployment of its applications and configuration settings of the application-hosting environment. Which cloud service model meets these requirements?

Options

• AInfrastructure as a Service
• BFunction as a Service
• CPlatform as a Service
• DSoftware as a Service

Explanation

Infrastructure as a Service (IaaS) is the cloud service model that allows a company to avoid managing the underlying cloud infrastructure while retaining control over application deployment and configuration settings of the application-hosting environment.

Common mistakes.

• B. Function as a Service (FaaS) is a serverless computing model where the cloud provider manages virtually all infrastructure, and the customer only deploys code functions, offering even less control than IaaS over the environment.
• C. Platform as a Service (PaaS) provides a platform for developing, running, and managing applications without the complexity of building and maintaining the infrastructure, but it offers less control over the underlying operating system and environment configuration than IaaS.
• D. Software as a Service (SaaS) is a complete, ready-to-use application delivered over the internet, where the cloud provider manages all aspects from infrastructure to application, leaving almost no control to the customer over the application-hosting environment.

Concept tested. Cloud service models (IaaS, PaaS, SaaS, FaaS).

Reference. https://learn.microsoft.com/en-us/azure/cloud-adoption-framework/ready/cloud-security/shared-responsibility

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