Final answer:
In a PaaS model, the cloud provider has additional responsibilities such as data encryption, user authentication, and operating system patching.
Step-by-step explanation:
In a PaaS (Platform as a Service) model, the cloud provider is responsible for several additional responsibilities, excluding the three core ones. These responsibilities include:
- Data Encryption: The cloud provider ensures that the data stored and transmitted within the platform is encrypted to protect it from unauthorized access.
- User Authentication: The cloud provider implements mechanisms for authenticating users and managing access control to the platform, ensuring that only authorized individuals can access the resources.
- Operating System Patching: The cloud provider is responsible for regularly updating and patching the operating system used by the PaaS platform, addressing any security vulnerabilities.
These additional responsibilities are crucial for ensuring the security and proper functioning of the PaaS model, allowing users to focus on developing and deploying applications without worrying about these underlying aspects.