2.2: Virtualization and Cloud Computing

Question 1

IaaS

Answer 1

Infrastructure as a Service(Hardware as a service)
Cloud provider will get you a server with an OS and connectivity, but nothing else.
Data is stored on 3rd party device but you have control over how it is secured.

Question 2

SaaS

Answer 2

Software as a Service
On demand software that you log into the system and use.
provider does all the managing and updating and security.

Question 3

PaaS

Answer 3

Platform as a Service (middle ground between Saas and Iaas)
They provide OS and virtualization.
Someone else handles the platform, you handle the development of the application.

Question 4

Xaas

Answer 4

Anything as a Service
Any type of service that is provided over the cloud.