Which example is a typical use case of IaaS?

Which example is a typical use case of IaaS?

• A. AWS EC2
• B. Gmail
• C. Salesforce CRM
• D. Google Docs

Answer: (A)

This item tests understanding of what infrastructure as a service (IaaS) provides versus ready-made software services. IaaS offers the fundamental computing resources—virtual machines, storage, and networking—while you manage the operating system, middleware, and applications. AWS EC2 fits this model because it gives on-demand virtual servers (instances) with configurable CPU, memory, and storage, and you have root access to install and manage your own software. It’s a typical IaaS use case since you control the software stack and can scale resources up or down as needed. In contrast, Gmail, Salesforce CRM, and Google Docs are examples of software as a service (SaaS). They provide fully ready-to-use applications hosted in the cloud, with the provider handling the infrastructure and you using the software without managing the underlying OS or servers.

This item tests understanding of what infrastructure as a service (IaaS) provides versus ready-made software services. IaaS offers the fundamental computing resources—virtual machines, storage, and networking—while you manage the operating system, middleware, and applications. AWS EC2 fits this model because it gives on-demand virtual servers (instances) with configurable CPU, memory, and storage, and you have root access to install and manage your own software. It’s a typical IaaS use case since you control the software stack and can scale resources up or down as needed.

In contrast, Gmail, Salesforce CRM, and Google Docs are examples of software as a service (SaaS). They provide fully ready-to-use applications hosted in the cloud, with the provider handling the infrastructure and you using the software without managing the underlying OS or servers.