Cloud Computing Basics

Understanding Cloud Computing:

Cloud computing is Internet-based computing, whereby shared resources, software, and information are provided to computers and other devices on-demand like public utilities.

Advantages and Disadvantages of Cloud Computing:

Advantages Disadvantages
Reliable & Scalable Compatibility
Cost Effective & Performance Privacy & Compliance
Backup & Disaster Recovery Outages


Cloud Deployment Models:

Cloud computing deployment models fall into three categories: Public Cloud, Private Cloud and Hybrid Cloud.

Public Cloud Private Cloud Hybrid Cloud
The cloud infrastructure is owned by a third-party organization that sells cloud services based on the demand The cloud infrastructure is owned, or leased by a single enterprise and is operated solely for that enterprise Multiple public and private clouds that are integrated and bound together to enable data and application portability


Cloud Service Models:

Cloud computing service models fall into three categories: Infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS).

Infrastructure as a service (IaaS) Platform as a service (PaaS) Software as a service (SaaS)
The Service provides basic compute power and storage resources and the servers are dedicated on demand The Service provide application hosting environment on demand and the applications uploaded by the customer will under managed infrastructure. The Service provide online cloud applications ready to use on demand
The customer will have full control over the servers. The customer need to manage only the applications hosted and have limited control. The customer will have no control over the applications.
Amazon Web Services, Google Cloud, Windows Azure Windows Azure, Google App Engine Office 365, Salesforce

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