CompTIA Cloud+ Practice Test

Which of the following is an aspect of cloud elasticity?

1. The ability to maintain existing infrastructure

2. The capability to reject excess capacity

3. The dynamic adjustment of resources

4. The requirement for static server configurations

The correct answer is: The dynamic adjustment of resources

Cloud elasticity refers to the ability of a cloud computing system to dynamically allocate and deallocate resources based on current demand. This feature allows organizations to efficiently manage their computing resources, ensuring they only use what they need at any given time, which helps in optimizing costs and improving performance. The dynamic adjustment of resources is central to this concept, as it enables systems to automatically scale up or down in response to changes in workload. For example, during peak usage times, additional resources can be provisioned to handle the increased demand, and when that demand decreases, those resources can be scaled back down accordingly. This flexibility is a key advantage of cloud environments over traditional infrastructures, where resources are typically fixed and require manual intervention to change. The other choices involve aspects of cloud infrastructure that do not directly relate to the concept of elasticity. Maintaining existing infrastructure and requiring static server configurations emphasize a more traditional, static approach to resource management, which does not leverage the benefits of scalability designed into cloud environments. Additionally, rejecting excess capacity does not capture the essence of elasticity, as elasticity is about efficiently adapting to available resources rather than outright rejecting excess. Thus, choice aligned with the dynamic adjustment of resources truly reflects the nature of cloud elasticity.