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Question 10 : Which cloud computing characteristic enables consumers to grow and shrink the demand for resources dynamically?

A. Rapid elasticity

B. Resource pooling

C. Measured service

D. On-demand self-service

Answer: A

Explanation: Rapid Elasticity : Capabilities can be elastically provisioned and released, in some cases automatically, to scale rapidly outward and inward commensurate with demand. To the consumer, the capabilities available for provisioning often appear to be unlimited and can be appropriated in any quantity at any time. Consumers can leverage rapid elasticity of the cloud when they have a fluctuation in their IT resource requirements. For example, an organization might require doubling the number of web and application servers for a specific duration to accomplish a specific task. For the remaining period, they might want to release idle server resources to cut down the expenses. The cloud enables consumers to grow and shrink the demand for resources dynamically.

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