Which of the following represents a key feature of cloud computing?

Dynamic resource scalability is a fundamental characteristic of cloud computing that enables organizations to adjust their resource usage based on current demand. This flexibility allows businesses to allocate and deallocate resources quickly and efficiently, accommodating fluctuating workloads without the need for significant upfront investment or physical infrastructure changes.

With dynamic resource scalability, an organization can automatically scale resources up or down, such as processing power, storage, or bandwidth, in response to real-time traffic or application requirements. This capability is particularly beneficial for handling varying workloads, such as peak hours for an e-commerce site or software development cycles. It not only enhances operational efficiency but also improves cost management, as users only pay for the resources they actually consume.

In contrast, fixed resource allocation would hinder flexibility by requiring predetermined resources that may not be efficiently utilized at all times. Limited user access contradicts the collaborative and accessible nature that cloud computing promotes, and high upfront hardware costs are associated with traditional IT models rather than cloud environments, which typically operate on a pay-as-you-go model.