Palo Alto Networks (PANW) Certified Cybersecurity Entry-level Technician (PCCET) Practice Exam

Which NIST cloud service model limits your choice of runtime environments in which an application can be written?

1. IaaS

2. PaaS

3. FaaS

4. SaaS

The correct answer is: PaaS

The correct answer is the Platform as a Service (PaaS) model. In PaaS, the cloud provider offers a platform allowing developers to build, deploy, and manage applications without dealing with the underlying infrastructure. While this simplifies the development process significantly, it also limits the choice of runtime environments because the platform dictates the specific programming languages, frameworks, and tools that can be used for application development. With PaaS, developers are constrained to the environments provided by the service, meaning they cannot freely select or modify the runtime or underlying architecture. This can be beneficial for standardization and speed of deployment, but it does not offer the flexibility that other models might. This limitation can influence decisions based on the specific use case or requirements of the application being developed. In contrast, models like Infrastructure as a Service (IaaS) provide much more freedom regarding the choice of runtime environments since users can configure their own hardware and operating systems. Software as a Service (SaaS) abstracts even further users access software applications without concern for the underlying environment, while Function as a Service (FaaS) enables developers to run code in response to events without needing to deal with the environment setup. Therefore, PaaS uniquely positions itself as the model