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Private clouds are also known as an internal or enterprise cloud, resides on company’s intranet or hosted data center. You have your data on your infrastructure behind a firewall. Availability, Security(Control), Scalability, Performance are enterprise oriented. Management, Maintenance (Replace) and Upgrade are enterprise fixed cost.
Public Cloud are shared computing, storage and networking resources. Physical resources are shared and control on some resources is restricted. On demand scalable and scale down as per need is possible without much investment. Management, Maintenance (Replace) and Upgrade are done by provider (Cost part of the service)
The main differentiator between public and private clouds is that you aren't responsible for any of the management of a public cloud hosting solution. Your data is stored in the provider's data center and the provider is responsible for the management and maintenance of the data center.
In private cloud- hosted service in internal infra behind the firewall.
public cloud - hosted service on service provider area.
Public cloud:
All our Date Store on cloud provide who will be fully responsible for Administrating and Maintance.but there will be some security isssue.it will reduce cost and time.
Private Cloud:
All our DATA Store In our side behind our firewall.so it is highly secure. maintance and Admininstration wil be company resposbile. it wil be expensive than other
Public cloud is a multi-tenant environment with pay as you go scalability.
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Private cloud is a single-tenant environment with scalability plus enhanced scurity.
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