Service Models
This model provides the consumer with the capability to provision processing, storage, networks, and other fundamental computing resources.
What is IaaS?
The cloud infrastructure is provisioned for open use by the general public.
What is Public Cloud?
Capabilities can be elastically provisioned and released, in some cases automatically, to scale rapidly outward and inward commensurate with demand.
What is Rapid Elasticity?
Expenses that are incurred for day-to-day operations, such as monthly cloud subscription fees.
What is OpEx or Operating Expenditure?
In this model, the consumer does not manage or control the underlying cloud infrastructure including network, servers, OS, or storage, but has control over the deployed applications.
What is PaaS?
The cloud infrastructure is provisioned for exclusive use by a single organization comprising multiple consumers.
What is Private Cloud?
Cloud systems automatically control and optimise resource use by leveraging a metering capability.
What is Measured Service?
Upfront spending on physical infrastructure, like buying a new server rack or AC unit.
What is CapEx or Capital Expenditure?
This model provides the consumer with the capability to use the provider’s applications running on a cloud infrastructure.
What is SaaS?
This model is a composition of two or more distinct cloud infrastructures (private, community, or public).
What is Hybrid Cloud?
Capabilities are available over the network and accessed through standard mechanisms by thick or thin client platforms.
What is Broad Network Access?
A pricing model where you only pay for the resources you actually use.
What is Pay-as-you-go?
Gmail, Dropbox, and Salesforce are examples of this service model.
What is SaaS?
A company uses this model by keeping sensitive data on a local Proxmox server while using Oracle Cloud for public web access
What is Hybrid Cloud?
The provider’s computing resources are pooled to serve multiple consumers using a multi-tenant model.
What is Resource Pooling?
A benefit of cloud computing is that it allows businesses to expand to new geographic regions quickly.
What is Global Reach?
Amazon EC2 and Google Compute Engine are examples of this service model.
What is IaaS?
A group of organisations with shared concerns (e.g., mission, security requirements) shares this cloud infrastructure.
What is Community Cloud?
Consumers can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction.
What is On-Demand Self-Service?
The ability of a system to remain operational and accessible even if some components fail.
What is High Availability?