The cloud computing deployment models describe

• how it is implemented
• how it is hosted
• who can assess it

Types of Cloud Deployment models

1. Public Cloud
2. Private Cloud
3. Hybrid Cloud
4. Community Cloud

Public Cloud

• It has massive amount of Storage and Storage Resourses

• It is also easily scalable

• It is recommended for developing cloud based application as it has globally distributed.

Feature:

1. feasiblity
2. scalability
3. accessibility
4. No Setup cost & maintenance

Advantage: It provide on- demand services
Dis- advantage: Loss of control, Insucure data.

Private Cloud

• It is restricted and protected by firewall.
• It can be on premise or hosted in a third party's data center.

Advantage: Security and Control- It restricted to accessible valuable resourses.
Dis- advantage: It is expensive and lack quick scalability

Hybrid Cloud

• It is the cobination of public and private cloud.
• It provide seamless interaction between private and public cloud
• This is perfect solution for organisation that need feasibility, cost saving, quick scalabailty feature of public cloud.

Cloud Brusting:

It is an application develpoment technique in which an application runs in a private cloud or data center and brust into a publid clouyd when the demand for cloud computing capacity spikes

Advantage: Best of both cloud nad cost saving.
Dis- advantage: As data is shared between private and public so there may ben potential performance and security risk.

Community Cloud

• It is a cloud infrastructure in which multiple organizations share resources and services based on common requirements.
• It is owned, managed, and operated by one or more organizations in the community, a third party, or a combination of them.

Advantage:

• Cost effective,
• Security: Community cloud is more secure than the public cloud but less secure than the private cloud.
• Sharing infrastructure

Dis- Advantage:

• Slow adoption to data
• The fixed amount of data storage and bandwidth is shared among all community members