This article explores the key differences between the classifications of Public, Private and Hybrid cloud environments.

Public Cloud refers to the cloud computing model with which the IT services are delivered across the Internet. The service may be free, freemium or a subscription-based offering charged based on the computing resources consumed. The computing functionality may range from common services such as email, apps and storage to the enterprise-grade OS platform or infrastructure environments used for software development and testing. The cloud vendor is responsible for developing, managing and maintaining the pool of computing resources shared between multiple tenants from across the network. The defining features of a public cloud solution include high elasticity and scalability for IT-enabled services delivered at a low cost subscription-based pricing tier. As the most popular model of cloud computing services, the public cloud offers vast choices in terms of solutions and computing resources to address the growing needs of organizations of all sizes and verticals.

The advantages of Public Cloud solutions for business customers include:

No investments

No investments required to deploy and maintain the IT infrastructure.

High scalability

High scalability and flexibility to meet unpredictable workload demands.

Reduced complexity

Reduced complexity and requirements on IT expertise as the cloud vendor is responsible to manage the infrastructure.

Private Cloud

Private Cloud refers to the cloud solution dedicated for use by a single organization. The data center resources may be located on-premise or operated by a third-party vendor off-site. The computing resources are isolated and delivered via a secure private network, and not shared with other customers. Private cloud is customizable to meet the unique business and security needs of the organization. With greater visibility and control into the infrastructure, organizations can operate compliance-sensitive IT workloads without compromising on the security and performance previously only achieved with dedicated on-premise data centers.

Advantages of Hybrid Cloud to business organizations include:


Flexible policy-driven deployment to distribute workloads across public and private infrastructure environments based on security, performance and cost requirements.


Scalability of public cloud environments is achieved without exposing sensitive IT workloads to the inherent security risks.


High reliability as the services are distributed across multiple data centers across public and private data centers.

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