CompTIA A+ Core 1 (220-1201)Virtualization and Cloud ComputingEasy
An organization uses a cloud provider for its development and testing environments. Developers frequently need to spin up new virtual machines, configure them with specific software, and then tear them down after testing. They want a solution that allows them to quickly provision and de-provision these resources without manual intervention, using a self-service portal. What characteristic of cloud computing does this scenario describe?
- ABroad Network Access
- BMeasured Service
- CResource Pooling
- DOn-demand Self-service
Show answer & explanationAnswer & explanation
Correct answer: D. On-demand Self-service
On-demand self-service allows users to provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction with each service provider. This perfectly matches the scenario where developers need to quickly provision and de-provision VMs via a self-service portal.
Why the other options are wrong
- A. Broad network access refers to the availability of cloud capabilities over the network.
- B. Measured service refers to the ability to monitor, control, and report resource usage.
- C. Resource pooling refers to the provider's ability to pool resources to serve multiple consumers.
On-demand Self-service
A fundamental characteristic of cloud computing that allows consumers to unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without human interaction with each service provider.
- Users provision resources independently.
- No human intervention from the provider required.
- Typically accessed via a web portal or API.
Memory trick: I 'SELF' provision what 'ON-DEMAND' I need.