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What are public, private and hybrid clouds?

Public, Private and Hybrid clouds:
Public Cloud:

Public clouds are the most common type of cloud computing deployment.

The cloud resources (like servers and storage) are owned and operated by a third-party cloud service provider.

Computing in which service provider makes all resources public over the internet. It is connected to the public Internet. 

In a public cloud, you share the same hardware, storage and network devices with other organisations.

Advantages:

  • Low cost
  • No maintenance
  • Scalability
  • Low Failure rate

Disadvantages:

  • Data security and privacy
  • Loss of control
  • Lack of options
  • Lack of customization

Private Cloud:

A private cloud consists of cloud computing resources used exclusively by one business or organisation. 

Physically located at your organisation’s on-site datacenter or it can be hosted by a third-party service provider.

Ability to provide dedicated resources. 

Advantages:

  • High security
  • High performance
  • Easy customization
  • Compliance
  • Better Control

Disadvantages:

  • Costs are substantial in the case of building an on-premise private cloud. 
  • The running cost would include personnel cost and periodic hardware upgrade costs.
  • Under utilization cost
  • Capacity ceiling

Hybrid Cloud:

Hybrid cloud combines on-premises infrastructure a private cloud with a public cloud.

Hybrid clouds allow data and apps to move between the two environments.

    Advantages:

    • greater flexibility
    • more deployment options
    • scale up
    • you can migrate gradually

    Disadvantages:

    • difficult to implement
    • difficult to maintain
    • security breaches to systems
    • complicated operations for organizations



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