Which cloud service model provides access to networking, storage, servers, and virtualization in a cloud environment?

Cloud service models define how services are delivered and managed in a cloud environment. The

three primary models are:

Infrastructure as a Service (IaaS): Provides virtualized computing resources such as servers, storage,

networking, and virtualization over the internet. Customers manage their own operating systems,

applications, and data, while the cloud provider manages the underlying infrastructure.

Platform as a Service (PaaS): Provides a platform for developers to build, deploy, and manage

applications without worrying about the underlying infrastructure. Examples include Google App

Engine and Microsoft Azure App Services.

Software as a Service (SaaS): Delivers fully functional applications over the internet, eliminating the

need for users to install or maintain software locally. Examples include Salesforce CRM, Google

Workspace, and Microsoft Office 365.

Database as a Service (DaaS): A specialized subset of PaaS that provides managed database services.

In this question, the focus is on access to networking, storage, servers, and virtualization , which are

the core components of IaaS . IaaS allows customers to rent infrastructure on-demand and build their

own environments without investing in physical hardware.

Why IaaS?

Flexibility: Customers have full control over the operating systems, applications, and configurations.

Scalability: Resources can be scaled up or down based on demand.

Cost Efficiency: Pay-as-you-go pricing eliminates upfront hardware costs.

JNCIA Cloud Reference:

The JNCIA-Cloud certification emphasizes understanding the different cloud service models and their

use cases. IaaS is particularly relevant for organizations that want to leverage cloud infrastructure

while maintaining control over their applications and data.

For example, Juniper Contrail integrates with IaaS platforms like OpenStack to provide advanced

networking and security features for virtualized environments.

Reference:

NIST Cloud Computing Reference Architecture

Juniper JNCIA-Cloud Study Guide: Cloud Service Models