2.5 Types of Cloud Computing

Question 1

Define ‘Cloud Computing’.

Answer 1

The on-demand delivery of: 
- Computer Power
- Database Storage
- Applications 
and other IT resources through cloud services via the internet with pay-as-you-go pricing.

Question 2

Provide an example of a ‘Maximum Control’ Computing Model.

Answer 2

Infrastructure as a Service (Iaas) - Running servers in the cloud similar to how they are run in a DC.

Question 3

Provide an example of a ‘Minimum Maintenance’ Computing Model.

Answer 3

Software as a Service (SaaS) - A piece of software that can be run from the cloud completely.

Question 4

Provide an example of a Computing model that is between ‘Maximum Control’ and ‘Minimum Maintenance’.

Answer 4

Platform as a Service (PaaS) - Servers that are already configured for your infrastructure, with room to be able to deploy customisations onto it (I.E. Elastic Beanstalk in AWS)

Question 5

Provide 3 types of Cloud Deployment Models.

Answer 5

Public Cloud - Deployed onto a public cloud provider (like AWS).
On-Premises (Private Cloud) - Cloud-like platform in a private data centre.
Hybrid - Cloud applications connected to a private data center.