Which of the following is a popular bare metal Type 1 hypervisor that allows multiple operating systems to run simultaneously on a single computer?

The correct answer is that ESXi is a popular bare metal Type 1 hypervisor designed to allow multiple operating systems to run simultaneously on a single physical computer. As a Type 1 hypervisor, ESXi operates directly on the hardware of the host machine, rather than atop an operating system. This direct interaction with the hardware enables better performance and efficiency as it eliminates the overhead of an underlying OS.

ESXi is widely used in enterprise environments for server virtualization, allowing organizations to maximize their hardware investment by running multiple virtual machines (VMs) on fewer physical servers. This capability improves resource utilization and facilitates easier management of server resources, scaling, and deployment of applications.

In contrast, while the other options are related to virtualization, they do not fit the description as a bare metal Type 1 hypervisor in the same way that ESXi does. For instance, Windows Server is an operating system that can host virtual machines but does not function as a standalone hypervisor by itself. XEN is indeed a Type 1 hypervisor, but it is less commonly used than ESXi in commercial environments. Hyper-V is also a Type 1 hypervisor developed by Microsoft, but it typically runs on top of Windows Server, meaning it is not a bare