Final answer:
Two good use cases for PaaS from the options provided are organizations that do not want to invest in ongoing upgrades and maintenance, and API development and management.
Step-by-step explanation:
Two good use cases for Platform as a Service (PaaS) are:
- Organizations who do not want to invest in ongoing upgrades and maintenance of their applications. PaaS allows these organizations to focus on developing their applications without having to worry about infrastructure management and updates.
- API development and management. PaaS provides an environment for building and deploying APIs, making it easier for organizations to develop and manage their APIs in a scalable and cost-effective way.