Microsoft Certified: Azure Fundamentals (AZ-900) Practice Exam

In what type of solution do you hold the most technical responsibility?

1. DaaS (Database as a Service)

2. PaaS

3. SaaS

4. IaaS

The correct answer is: IaaS

In an Infrastructure as a Service (IaaS) solution, you assume the most technical responsibility. IaaS provides users with virtualized computing resources over the internet, allowing them to manage the operating systems, applications, and middleware, alongside network components. This level of control means that users need to handle tasks such as configuring and maintaining the server, managing storage, and ensuring network security. With IaaS, you are responsible for setting up the virtual machines, managing their performance, and dealing with the underlying infrastructure, which requires a good technical understanding of both the operating systems and the virtualization technology. This contrasts with other service models where the cloud provider takes on more of the operational burden. For example, in PaaS (Platform as a Service), the provider manages the underlying hardware and software infrastructure, allowing users to focus primarily on application development. In SaaS (Software as a Service), the provider fully manages the application and infrastructure, leaving users with minimal technical responsibilities, often limited to user configuration. DaaS (Database as a Service) also reduces the level of technical responsibility by managing the infrastructure and database management tasks. Therefore, IaaS is the option where you bear the most technical responsibility, as it involves a more