Final answer:
The Now Platform by ServiceNow is an example of a Platform as a Service (PaaS) cloud computing model. It offers a platform for customers to develop, run, and manage applications without worrying about underlying infrastructure.
Step-by-step explanation:
The Now Platform by ServiceNow is an example of a Platform as a Service (PaaS) cloud computing model. PaaS provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app. In contrast, Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, Software as a Service (SaaS) offers software applications over the internet, and Function as a Service (FaaS) allows for event-driven computing where functions are executed in response to events.