Aww, clouds spread all around! What…. Will it rain this time?
Oh no! I am not talking about clouds or rain. We are going to discuss such a topic that is in global demand. Hope you have guessed it. Yes, it's all about cloud computing technology. Some of you may or may not have practiced this. Today we shall get a basic comprehensive about this. Here you go!
If I am not mistaken, the first question in your mind now is, what is Cloud Computing?
According to Rajkumar Buyya, "A Cloud is a type of parallel and distributed system consisting of a collection of interconnected and virtualized computers that are dynamically provisioned and presented as one or more unified computing resources based on service-level agreements established through negotiation between the service provider and consumers."
In the simplest term, cloud computing is such a service that is far better than on-premises services. Which makes the difference between these both? Let's understand the Cloud architecture within 2 minutes.
The essential characteristics which have fuelled our thirst for cloud computing are-
Resources' capabilities are available over the network and anybody can access it through standard mechanisms from anywhere, anytime in the world.
Ability to quickly provision resources as per the need of the individuals. Features of scale in and scale out.
Control and optimize resources by grasping a metering capability at some level of abstraction appropriate to the type of service. Resource usage can be monitored, controlled, and reported. Transparent services are provided for both the provider and consumer of the service.
Consumers can directly request and receive access to a service offering without a third party.
The provider's computing resources are pooled to serve multiple consumers using a multi-tenant model, with different physical and virtual resources dynamically assigned and reassigned according to consumer demand. A resource can be storage, memory, bandwidth, or a virtual machine.
Now we shall know quickly about the cloud service models.
Example – Amazon EC2
Example – Microsoft Azure, Google App Engine
Example – AWS, Salesforce
Have a keen interest in cloud deployment models?
The cloud infrastructure is made available to the general public or a large industry group and is owned by an organization selling cloud services.
Examples of Public Cloud:
The cloud infrastructure is operated solely for a single organization. It may be managed by the organization or a third party and may exist on-premises or off-premises.
Examples of Private Cloud:
The cloud infrastructure is shared by several organizations and supports a specific community that has shared concerns (e.g., mission, security requirements, policy, or compliance considerations). It may be managed by the organizations or a third party and may exist on-premises or off-premises.
Examples of Community Cloud:
The cloud infrastructure is a composition of two or more clouds (private, community, or public) that remain unique entities but are bound together by standardized or proprietary technology that enables data and application portability (e.g., cloud bursting for load-balancing between clouds).
Examples of Hybrid Cloud:
The most important technology today is Cloud Computing technology. Its demand is increasing rapidly for its driven attributes. Cloud Computing offers better service for half the money a company costs to buy on-premises resources. This modern technology allows you to pay only for how much you use i.e., "Pay-as-you-go".
Nowadays, it turns into a popular practice that involves data security with good backup system not only for a person, but for the world. From individuals to companies and from vendor to buyer, all have migrated to cloud platforms for gaining better security, scalability, storage and mobility.
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