Cost-Effective Architecture for Variable Capacity Demand
Question
In a corporation where compute utilization spikes several times a year, the Chief Information Officer (CIO) has requested a cost-effective architecture to handle the variable capacity demand.
Which of the following characteristics BEST describes what the CIO has requested?
Answers
Explanations
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A. B. C. D.A.
Elasticity is defined as the degree to which a system is able to adapt to workload changes by provisioning and de-provisioning resources in an autonomic manner, such that at each point in time the available resources match the current demand as closely as possible.
The CIO has requested a cost-effective architecture to handle variable capacity demand. This indicates that the organization requires a solution that can automatically scale up or down computing resources in response to changes in demand while minimizing cost.
Option A, Elasticity, refers to the ability of a system to automatically provision and deprovision resources based on changes in demand. An elastic system can quickly adapt to changes in workload without manual intervention, which makes it a suitable solution for a corporation with variable compute utilization. Therefore, option A is a suitable answer.
Option B, Scalability, refers to the ability of a system to handle an increasing workload by adding resources such as CPU, memory, storage, or network bandwidth. Scalability is essential for a system to grow as the organization expands, but it does not address the issue of variable capacity demand.
Option C, High availability, refers to a system's ability to provide uninterrupted service, typically achieved through redundant components and failover mechanisms. While high availability is an essential feature of any critical system, it does not directly address the issue of handling variable capacity demand.
Option D, Redundancy, refers to having backup components in place to ensure that a system can continue operating in the event of a failure. Redundancy is essential for achieving high availability, but, like option C, does not address the issue of variable capacity demand.
In conclusion, option A, Elasticity, is the best answer as it aligns with the CIO's request for a cost-effective architecture that can handle variable capacity demand.
