Which benefit of hypervisors relates to the ease of managing multiple virtual machines?

The benefit of hypervisors that relates to the ease of managing multiple virtual machines is indeed found in the management tool aspect. Hypervisors serve as the foundation for virtualization, allowing multiple operating systems to run on a single physical machine. This capability simplifies management significantly through centralized control, as management tools associated with hypervisors provide user interfaces and APIs to create, configure, and monitor virtual machines efficiently.

These tools allow administrators to manage resources, allocate memory, and monitor performance across various virtual machines from a single console, leading to improved operational efficiency. Additionally, they enable automation of tasks like provisioning, scaling, and resource allocation, reducing the administrative burden associated with managing multiple individual physical devices.

In contrast to the focus on management, performance relates more to how well the hypervisor utilizes underlying hardware to deliver resources to the virtual machines. Cost considerations are associated with reduced hardware requirements and energy savings but do not directly pertain to managing the virtual machines themselves. Live migration, while a significant feature allowing virtual machines to be moved between hosts without downtime, also does not singularly capture the broader management aspect. Thus, the management tool benefit encapsulates the central theme of overseeing and optimizing multiple virtual environments effectively.