Types of Cloud Computing

Question 1

Types of cloud computing (cloud computing models)

Answer 1

Infrastructure as a Service (IaaS)

Platform as a Service (PaaS)

Software as a Service (SaaS)

Question 2

Infrastructure as a Service (IaaS)

Answer 2

• contains basic building blocks for cloud IT and provides access to networking features, computers (virtual or on dedicated hardware), data storage space.
• highest level of flexibility and management control over your IT resources
• most similar to existing IT resources that many IT departments and developers are familiar with today.

Question 3

Platform as a Service (PaaS)

Answer 3

• removes need for organisation to manage underlying infrastructure (hardware and operating systems).
• allows to focus on deployment and management of your applications.
• more efficient, don’t worry about resource procurement, capacity planning, software maintenance, patching, heavy lifting involved in running your application.

Question 4

Software as a Service (SaaS)

Answer 4

• provides you with completed product run and managed by service provider
• only think about how you will use that particular software.
  e. g. web-based email.