CompTIA A+ Core 1 (220-1201)Virtualization and Cloud ComputingMedium
A cloud provider offers a service that allows customers to deploy and manage virtual machines, storage, and networking resources. The customer is responsible for installing and maintaining the operating systems, databases, and applications on these virtual machines. The cloud provider bills the customer based on the actual usage of these underlying computing resources. What characteristic of cloud computing does this billing model represent?
- AMeasured service
- BResource pooling
- CBroad network access
- DOn-demand self-service
Show answer & explanationAnswer & explanation
Correct answer: A. Measured service
Measured service is a characteristic of cloud computing where resource usage is monitored, controlled, and reported, allowing for transparent billing based on consumption. This 'pay-per-use' model is exactly what the scenario describes, where the customer is billed based on actual usage.
Why the other options are wrong
- B. Resource pooling is about the provider's aggregation of resources, not how customers are billed.
- C. Broad network access refers to accessibility over the network, not the billing model.
- D. On-demand self-service relates to provisioning resources without human interaction, not billing.
Measured Service
A characteristic of cloud computing where resource usage is monitored, controlled, and reported, providing transparency for both the provider and consumer. This enables a 'pay-per-use' or consumption-based billing model.
- Resource usage is tracked and reported.
- Enables transparent billing based on consumption.
- Often aligns with 'pay-as-you-go' models.
Memory trick: To 'MEASURE' your bill, you need 'MEASURED' service.