Iaas
Infrastructure as a Service is a cloud service model that provides on-demand computing, storage, and networking resources while customers manage the operating systems and applications they run.
Microsoft Azure in Action
Infrastructure as a service (IaaS) is a cloud service model that provides virtualized computing, networking, and storage while leaving customers responsible for higher-level software and configuration.
- How it is used
- Provides Azure computing, networking, and storage without requiring ownership of physical equipment.
- How deep it goes
- Explains virtualization and the division of security and maintenance responsibilities, then outlines VM choices without detailing virtualization algorithms.
- Examples
- Uses Azure VMs, a small legacy application, and VM creation and cost choices as practical examples.
- What you can do after
- Operate/configure it by choosing an Azure VM, securing its access, and planning for maintenance and cost.
Acing the CCNA Exam: Volume 2 Advanced Networking and Security
Infrastructure as a service is a cloud service model that provides on-demand computing, storage, and networking resources for customer-managed operating systems and applications.
- How it is used
- Deploys customer-managed operating systems and applications on provider-supplied computing, storage, and networking resources.
- How deep it goes
- Defines resources, customer control, elasticity, and measured usage, but does not detail provider implementation or configuration commands.
- Examples
- Uses virtual machines, installed operating systems, applications, AWS, Microsoft Azure, and Google Cloud Platform as examples.
- What you can do after
- Evaluate which cloud service model supplies infrastructure while retaining responsibility for operating systems and applications.
Read how Acing the CCNA Exam: Volume 2 Advanced Networking and Security explains iaas →
Azure Security
Infrastructure as a service is a cloud service model that provides virtualized compute, storage, and networking resources for customer-managed workloads.
- How it is used
- Deploys on-demand compute, storage, and networking while framing the customer’s security obligations for cloud-hosted workloads.
- How deep it goes
- Explains the provider-customer security boundary and applies it to VM assessment, but stops short of broader workload configuration.
- Examples
- Uses Azure virtual machines, Log Analytics workspaces, Microsoft Cloud Security Benchmark assignment, and Defender for Cloud recommendations.
- What you can do after
- Operate IaaS security assessment through Azure CLI, Defender for Cloud, the Log Analytics agent, and regional workspaces.
Amazon Web Services in Action, Third Edition: An in-depth guide to AWS
Infrastructure as a service is a cloud service model that provides fundamental computing, storage, and networking resources for consumption on demand.
- How it is used
- Provides on-demand computing, storage, and networking resources for cloud applications and infrastructure.
- How deep it goes
- Defines IaaS, contrasts it with PaaS and SaaS, and distinguishes it from Infrastructure as Code without detailing resource implementation.
- Examples
- Uses Amazon EC2, Azure Virtual Machines, Google Compute Engine, and distributed storage services as concrete provider examples.
- What you can do after
- Operate cloud infrastructure through web interfaces, command-line code, SDKs, or infrastructure blueprints.
Read how Amazon Web Services in Action, Third Edition: An in-depth guide to AWS explains iaas →
Related concepts
- platform as a servicealternative to · Platform as a service (PaaS) is a cloud service model that provides a managed application development, deployment, or runtime platform while abstracting management of the underlying infrastructure.
- virtual machineuses · A virtual machine is a software-based environment that emulates or implements an abstract computer system, providing an interface on which an operating system or programs can execute.
- virtualizationuses · Virtualization is the abstraction of physical computing, storage, or networking resources into isolated logical environments or instances that share underlying infrastructure.
- Kubernetescontrasts with · Kubernetes is an open-source platform for orchestrating and automating the deployment, scaling, and management of containerized workloads across computing clusters.
- shared-responsibility modelused by · A shared-responsibility model is an arrangement in which multiple parties divide accountability for operating, securing, managing, or assuring a system or service.
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