CompTIA Cloud+ Practice Test

What operation allows Ethel to add capacity from another cloud service during high-demand periods?

1. Elasticity

2. Cloud bursting

3. Vertical scaling

4. Autoscaling

The correct answer is: Cloud bursting

The correct response highlights the concept of cloud bursting, which is a technique used to extend a cloud application's capacity by utilizing additional resources from external cloud services during periods of high demand. This operation allows an organization to maintain performance and reliability by leveraging supplementary capacity without needing to invest in permanent infrastructure. When demand spikes unexpectedly, cloud bursting enables an application to shift excess workloads from a private or local environment to a public cloud, thus effectively managing bursts in traffic or resource utilization dynamically. This is particularly beneficial for applications that experience variable demand and allows organizations to pay for additional capacity only when necessary, ensuring cost efficiency and scalability. Elasticity refers to the ability of a system to dynamically allocate resources as needed, but it does not specifically involve adding resources from another cloud service. Vertical scaling involves increasing the capabilities of a single resource, such as upgrading a server, rather than distributing the load across multiple cloud environments. Autoscaling generally automates the process of provisioning and deprovisioning resources based on demand but does not inherently imply the use of resources from external services.