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* What is cloud architecture?
What is cloud architecture?
===========================
Published  August 19, 2022•*2*-minute read
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OverviewWhat does it look like?Types of architecturesFind/become a cloud architectWhy Red Hat?
Overview
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Cloud architecture is how individual technologies are integrated to create [clouds](/en/topics/cloud-computing)—IT environments that abstract, pool, and share scalable resources across a network. Cloud architecture is how all the components and capabilities necessary to build a cloud are connected in order to deliver an online platform on which applications can run.
Imagine you're building a house: [Cloud infrastructure](/en/topics/cloud-computing/what-is-cloud-infrastructure) incorporates all the materials, while cloud architecture is the blueprint.
What does a cloud architecture look like?
-----------------------------------------
Clouds are considered [Platforms-as-a-Service (PaaS)](/en/topics/cloud-computing/what-is-paas), since a [cloud provider](/en/topics/cloud-computing/what-are-cloud-providers) supplies users with both the platform and the underlying [IT infrastructure](/en/topics/cloud-computing/what-is-it-infrastructure). Architecting a cloud platform requires more than just abstracting a computer’s capabilities from its hardware components, which is how providers create and offer cloud infrastructure to users. It also requires additional levels of development to incorporate [containerization](/en/topics/containers), [orchestration](/en/topics/automation/what-is-orchestration), [application programming interfaces (APIs)](/en/topics/api), routing, [security](/en/topics/security), [management](/en/topics/management), and [automation](/en/topics/automation) software. User experience design (UX) is also important in order to create a navigable online experience.
While there are variations of cloud architecture based on what you’re trying to do, most clouds require hardware, middleware, management, and automation software. Most clouds also use [virtualization](/en/topics/virtualization) to abstract the hardware resources into centrally managed [data lakes](/en/topics/data-storage/what-is-a-data-lake), while some clouds—known as bare-metal clouds—connect clients directly to hardware.
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Public, private, hybrid, and multicloud architectures
-----------------------------------------------------
* [Public cloud architecture](/en/topics/cloud-computing/what-is-public-cloud): A cloud environment created from resources not owned by the end user that can be redistributed to other tenants.
* [Private cloud architecture](/en/topics/cloud-computing/what-is-private-cloud): Loosely defined as a cloud environment solely dedicated to the end user, usually within the user’s firewall and sometimes on premise.
* [Hybrid cloud architecture](/en/topics/cloud-computing/what-is-hybrid-cloud): Multiple cloud environments with some degree of workload portability, orchestration, and management among them.
* [Multicloud architecture](/en/topics/cloud-computing/what-is-multicloud): An IT system that includes more than 1 cloud—public or private—that may or may not be networked together.
How do I find or become a cloud architect?
------------------------------------------
If you want to find or become one of the most qualified open source cloud architects, consider a [Red Hat Certified Architect (RHCA)](/en/services/certification/rhca). Becoming an RHCA requires Red Hat Certified System Administrator and Red Hat Certified Engineer certifications, and almost half of the nearly 20 exams that qualify towards an RHCA cover cloud topics.
[Become an RHCA cloud specialist](/en/blog/red-hat-certified-cloud-architect-openstack-perspective-part-one)
Why Red Hat?
------------
Because when you build your cloud architecture with [Red Hat products](/en/technologies/all-products), you get [interoperability](/en/technologies/cloud-computing/service-interconnect) across any environment: public cloud, private cloud, hybrid cloud, and [multicloud](/en/topics/cloud-computing/what-is-multicloud), as well as bare-metal and virtual environments. Connect our open source products using open [application programming interfaces](/en/topics/api) and open standards to build a cloud architecture that fosters [open organization](/en/explore/the-open-organization-book) practices like [agile integration](/en/topics/integration/what-is-integration), [DevOps](/en/topics/devops), and [CI/CD](/en/topics/devops/what-is-ci-cd).
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------------
### What is hybrid cloud?
Find out more about hybrid cloud, a combination of computing environments that share information and run a uniform series of applications.
[Read the article](/en/topics/cloud-computing/what-is-hybrid-cloud "article | what is hybrid cloud")
### What's the difference between cloud and virtualization?
Learn the key differences between virtualization and cloud computing, their definitions, configurations, costs, scalability, tenancy, and security benefits.
[Read the article](/en/topics/cloud-computing/cloud-vs-virtualization "article | what's the difference between cloud and virtualization")
### Why are financial services slow to adopt the cloud?
Find out why the financial services industry is slow to adopt the cloud, and why it's still a good idea to get started.
[Read the article](/en/topics/financial-services/why-financial-services-are-slow-to-adopt-cloud "article | Why are financial services slow to adopt the cloud?")
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