There are different types of clouds public cloud private cloud hybrid cloud.
We'll discuss what is a public cloud its benefits limitations and use cases.
We'll discuss private and hybrid clouds.
First public cloud as the name implies a public cloud is public and it is the most common type of cloud.
It is easy for anyone that is an individual or an organization to start using public cloud resources and services.
There is no upfront huge capital expenditure.
You don't have to buy the expensive hardware or worry about setup and maintaining the cloud.
This is because with the public cloud all the infrastructure.
That is the physical Servers storage networking, etc are carried and possessed by the cloud service provider.
This cloud service provider that sets up the cloud and maintains it there on Microsoft azure and amazon web services are examples of a public cloud.
We pierce public cloud resources and services over the internet.
So to use a public cloud, we need an internet connection and to manage the cloud services and resources the cloud service provider provides a web portal for the cloud services and resources.
We use we pay a monthly fee to the cloud service provider.
This yearly figure is like your mileage bills water or electricity.
For example, it's pay-as-you-go model meaning you only pay for what you use anyone can use the public cloud in a public cloud your organization share the same hardware storage and network devices with other organizations in cloud computing terms.
This is called multi-tenancy.
Your organization data may be stored along with other organizations data on the same storage device.
Now, let's look at the benefits of the public cloud.
You don't have to buy expensive hardware or set up your own data center.
That is no upfront capital expenditure.
It supports pay as you go model.
You only pay for what you use just like your water or electricity monthly bills no maintenance headaches you.
As a consumer don't have to worry about maintaining the public cloud that is replacing the failed hardware installing the security patches updates, etc.
Your service provider is responsible for maintaining the public cloud.
You only pay a small monthly fee based on the cloud services you use highly scalable.
You'll nearly noway run out of resources in a public cloud based on your business needs you can Scale resources up and down.
You can indeed automate this by setting threshold limits largely dependable.
So data is always backed up this means hardware failure power failure natural disaster or other crisis do not result in data loss.
So bottom line public cloud is highly reliable next limitations low visibility and control public cloud infrastructure is owned by the cloud service provider.
So you don't have much visibility and control over it compliance and legal risks, since you don't have much visibility and control over the public cloud infrastructure.
You're counting on the cloud service provider to cover data and cleave to original and transnational regulations your company may still be liable if the cloud service provider fails to live up to the task and if there is a data breach.
So a public cloud may not be the most viable solution for security sensitive or mission critical applications cost.
Concerns cloud in general reduces upfront infrastructure costs and,
Its pay as you go model provides more flexibility depending on the traffic the amount of cloud resources you consume.
The plan you have chosen the way you scale resources up and down determines the overall price you pay sometimes this overall price tag may be higher than what you anticipated next.
Let's look at the use cases for public cloud.
We never run out of resources in a public cloud.
It provides near unlimited scalability.
So if you want to dynamically scale up and down at well,
Then public cloud is your solution businesses with varying peak demands greatly benefit from the public cloud.
There is high demand you scale up and when the demand subsides you scale down and pay only for what you use fast growing businesses also greatly benefit from the public cloud.