CompTIA Cloud+ Practice Test

A cloud service provider allocates resources into a group for dynamic allocation as needed. What is this process called?

1. On-demand virtualization

2. Dynamic scaling

3. Resource pooling

4. Elasticity

The correct answer is: Resource pooling

The process of allocating resources into a group for dynamic allocation as needed is best described as resource pooling. In cloud computing, resource pooling allows a cloud service provider to create a collection of computing resources (such as storage, processing, and memory) that can be allocated to multiple customers based on demand. This approach efficiently uses resources, enabling the provider to offer services to many clients while managing them from a centralized pool, thus optimizing costs and resource utilization. This concept is fundamental to cloud architectures, as it underlines the ability to provide a flexible and scalable environment. Users can draw from this pool, allowing for improved efficiency and performance without needing to provision dedicated resources for every unique requirement. Resource pooling is integral to delivering various cloud service models, such as Infrastructure as a Service (IaaS) and Platform as a Service (PaaS), where multiple customers can share the same physical resources while ensuring isolation and security. The other choices relate to aspects of cloud computing but not specifically to the allocation of resources into a dynamic pool. For instance, on-demand virtualization typically refers to the ability to create virtual machines as needed rather than the pooling process itself. Dynamic scaling is related to automatically adjusting resources to meet changing demands but doesn't encompass the concept of resource allocation into a