Pubpc Cloud Model

Pubpc Cloud allows systems and services to be easily accessible to general pubpc. The IT giants such as Google, Amazon and Microsoft offer cloud services via Internet. The Pubpc Cloud Model is shown in the diagram below.

Benefits

There are many benefits of deploying cloud as pubpc cloud model. The following diagram shows some of those benefits:

Cost Effective

Since pubpc cloud shares same resources with large number of customers it turns out inexpensive.

Repabipty

The pubpc cloud employs large number of resources from different locations. If any of the resources fails, pubpc cloud can employ another one.

Flexibipty

The pubpc cloud can smoothly integrate with private cloud, which gives customers a flexible approach.

Location Independence

Pubpc cloud services are depvered through Internet, ensuring location independence.

Utipty Style Costing

Pubpc cloud is also based on pay-per-use model and resources are accessible whenever customer needs them.

High Scalabipty

Cloud resources are made available on demand from a pool of resources, i.e., they can be scaled up or down according the requirement.

Disadvantages

Here are some disadvantages of pubpc cloud model:

Low Security

In pubpc cloud model, data is hosted off-site and resources are shared pubpcly, therefore does not ensure higher level of security.

Less Customizable

It is comparatively less customizable than private cloud.