Public Cloud
NIST definition of Public Cloud: The cloud infrastructure is made available to the public or a large industry group and is owned by an organization selling cloud services.
As per Microsoft Azure: The public cloud is defined as computing services offered by third-party providers over the public Internet, making them available to anyone who wants to use or purchase them. They may be free or sold on-demand, allowing customers to pay only per usage for the CPU cycles, storage or bandwidth they consume.
The Public cloud provides easy access to IT resources as you need them and when you need them, reducing the cost and burden of ongoing hardware and datacenter management. Today’s leading cloud solutions deliver IT environments that are more flexible and scalable allowing you to innovate and more quickly respond to business and market demands.

Public Cloud
Unlike private clouds, public clouds can save companies from the expensive costs of having to purchase, manage and maintain on-premises hardware and application infrastructure – the cloud service provider is held responsible for all management and maintenance of the system.
Every employee of a company can use the same application from any office or branch using their device through The Internet.
While security concerns have been raised over public cloud environments, when implemented correctly, the public cloud can be as secure as the most effectively managed private cloud implementation if the provider uses proper security methods, such as intrusion detection and prevention systems (IDPS).
The Key benefit of using public cloud
Cost Efficient Model: Only pay for the resources you use to run your business.
Innovation: Drive innovation by leveraging the agility, flexibility, and scalability of the public cloud.
IT Modernization: Modernize applications with cloud capabilities for improved performance and reduced IT costs.
Speed: Public clouds can also be deployed faster than on-premises infrastructures and with an almost infinitely scalable platform.
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