Which characteristic of the AWS Cloud helps users eliminate (CLF-C02)

Correct answer: B) Elasticity.
Elasticity refers to the ability of the cloud to automatically scale resources up or down based on demand. In the context of CPU capacity, elasticity allows users to dynamically adjust the amount of CPU resources allocated to their applications in response to changing workload requirements.

For example, if an application experiences increased demand during peak hours, AWS services such as Amazon EC2 (Elastic Compute Cloud) allow users to automatically scale out by adding more instances with additional CPU capacity to handle the increased load. Conversely, during periods of low demand, AWS can scale in by reducing the number of instances or adjusting the CPU capacity of existing instances, thereby eliminating underutilized CPU capacity and optimizing cost efficiency.

By leveraging elasticity, users can ensure that their applications always have the right amount of CPU capacity to meet performance requirements without over-provisioning resources and incurring unnecessary costs. This dynamic scaling capability is a key advantage of cloud computing, enabling users to optimize resource utilization and cost-effectively manage fluctuating workloads. Therefore, option B, elasticity, is the correct choice for eliminating underutilized CPU capacity in the AWS Cloud.