Desktop as a Service is a service of the type:IaaS.Network as a Service.PaaS.SaaS.

Desktop as a Service (DaaS) is a cloud computing offering that delivers virtual desktops to users over the internet. This service allows organizations to provide remote access to desktop environments without the need for local hardware or software installations.

Now let's classify DaaS into one of the five categories you've mentioned:

1. IaaS (Infrastructure as a Service): This cloud model provides virtualized computing resources over the internet. While DaaS relies on infrastructure, its primary focus is on delivering desktop environments rather than merely providing raw infrastructure.

2. NaaS (Network as a Service): This model offers network services over the internet. DaaS does not primarily focus on networking capabilities; instead, it focuses on supplying desktops.

3. PaaS (Platform as a Service): This model offers a platform allowing customers to develop, run, and manage applications without dealing with the complexity of building and maintaining the underlying infrastructure. DaaS is not centered on application development or hosting.

4. SaaS (Software as a Service): This model provides software applications over the internet on a subscription basis. It includes applications that are available to users directly via the web. DaaS fits into this category because it provides a complete desktop environment that includes operating systems and applications as services to end users.

Final Answer

Desktop as a Service is classified as SaaS (Software as a Service).