1.3 Cloud Computing Models and Shared Responsibility

Question 1

Define IaaS.

Answer 1

Infrastructure as a service. A computing model that offers the on-demand availability of almost infinitely scalable infrastructure resources, such as compute, networking, storage, and databases as services over the internet.

Question 2

Define PaaS.

Answer 2

Platform as a service. A computing model that offers a cloud-based platform for developing, running, and managing applications.

Question 3

Define SaaS.

Answer 3

Software as a service. A computing model that offers an entire application, managed by a cloud provider, through a web browser

Question 4

Define abstraction.

Answer 4

You can visualize these cloud computing models in layers. As you move up the layers from one model to another, each model requires less knowledge and management of the underlying infrastructure.