CompTIA Cloud+ Practice Test

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When you run out of computer resources in your internal data center and expand to an external cloud on demand, this is an example of what?

SaaS
Hybrid cloud
Cloud bursting
Elasticity

The correct answer is: Cloud bursting

The scenario presented describes the practice of using external cloud resources to meet demand when internal resources are insufficient, which is known as cloud bursting. Cloud bursting specifically refers to a configuration in which an application runs in a private cloud or data center and can "burst" into a public cloud when demand for resources exceeds what is available on-site. This allows for rapid scaling of resources to handle peak loads without having to permanently expand the internal infrastructure. It effectively combines the benefits of both private and public clouds, offering flexibility and scalability while managing costs. Other options may have their own specific meanings within cloud computing but do not accurately capture the essence of the situation described. SaaS (Software as a Service) relates to software delivery models rather than resource management. Hybrid cloud involves a mix of both private and public clouds but does not specifically entail the on-demand expansion of resources during peak loads. Elasticity refers to the ability of resources to be provisioned and de-provisioned automatically as needed, but in this context, the act of expanding to an external cloud resource on demand specifically highlights the cloud bursting phenomenon.