Explain the cloud computing reference model with a neat diagram

1.A) Explain the cloud computing reference model with a neat diagram. – 7 Marks

Answer:-

1. IaaS (Infrastructure-as-a-Service):
   Infrastructure-as-a-Service solutions provide infrastructure on demand in the form of virtual hardware, storage, and networking.
   Example: S3
   End Users: System administrators
2. PaaS (Platform-as-a-Service):
   Platform-as-a-Service is a cloud-based environment where the development, testing, and deployment of various applications take place.
   Example: Database
   End Users: Developers
3. SaaS (Software-as-a-Service):
   Software-as-a-Service solutions deliver applications and services on demand. Many common functionalities of desktop applications—such as office automation, document management, photo editing, and customer relationship management (CRM) software—are replicated on the provider’s infrastructure, making them more scalable and accessible through a browser.
   Examples: Email, Google Apps
   End Users: Customers