What are Resource Pools used for in vSphere?

Resource Pools in vSphere are specifically designed to allocate resources such as CPU and memory among virtual machines efficiently. They provide a way to manage and distribute the computing resources of the underlying hardware in a structured manner.

When using Resource Pools, administrators can create logical divisions for resource allocation, allowing different applications, teams, or departments to have dedicated resources. This ensures that critical virtual machines can receive the resources they require, even in times of high demand, while still allowing other virtual machines to use resources in a way that is efficient and controlled.

By setting reservations, limits, and shares on Resource Pools, you can prioritize service levels and performance based on business needs. This capability is fundamental for optimizing the performance of a virtualized environment and allows for better resource management.

The other options do not describe the purpose of Resource Pools. They either refer to functions not performed by Resource Pools, such as creating virtual networks or backing up virtual machines, or they misrepresent the focus of resource distribution, which is done at the virtual machine level rather than between physical machines.