Cloud Models and Their Use Cases
There are three deployment models for cloud computing: public cloud, private cloud, and hybrid cloud. Each deployment model has different aspects that you should consider as you migrate to the cloud. In this lecture, we’ll review each of them.
In this lecture, you will learn about the three primary deployment models for cloud computing, which are the public cloud, private cloud, and hybrid cloud. Each model presents unique aspects that are crucial to understand when considering a move to cloud services.
Starting with the public cloud model, you’ll explore how services are made available over the public internet and can be purchased by anyone interested. You will learn that in the public cloud, the resources such as servers and storage are managed by an external provider, exemplified here by Microsoft Azure, and are accessed online.
Next, the private cloud is introduced as a computing environment where resources are dedicated to a single organization. It’s important to understand that a private cloud can either be housed within an organization’s own data center or hosted by a third-party service provider. However, the defining characteristic of a private cloud is its exclusive use by one organization.
Moving on to the hybrid cloud, this section will clarify how it merges public and private clouds, permitting the sharing of data and applications between them. This model is particularly relevant for large organizations looking for flexibility in their computing needs.
The lecture will also delve into the specific use cases for each cloud model. For the public cloud, you will understand its cost-effective nature, as there are no capital expenditures needed to scale up. It allows for rapid provisioning and de-provisioning of applications with a pay-as-you-go pricing model.
For the private cloud, the focus will be on the initial investment in hardware and ongoing maintenance. Despite these costs, the private cloud offers complete control over resources and security, with the organization retaining responsibility for hardware upkeep and updates.
Lastly, the hybrid cloud is discussed as the most flexible yet potentially the most expensive option, which gives organizations the ability to choose where to run their applications while controlling security, compliance, and legal aspects.
As you prepare for exams on the topic, remember these key distinctions: the public cloud eliminates upfront costs and is shared amongst multiple customers, the private cloud is dedicated to a single organization which is responsible for all costs, and the hybrid cloud integrates both models, offering a balance of control and flexibility.