Which of the following are Type 1 hypervisors? (Choose three.)
- Microsoft Hyper-V
- VMware ESXi
- Oracle VirtualBox
- VMware Workstation
Of the available options, Microsoft Hyper-V, VMware ESXi, and XenServer are all Type 1 hypervisors. A hypervisor is software that is capable of virtualizing the physical components of computer hardware. Virtualization enables the creation of multiple virtual machines (VMs) that can be configured and run in separate instances on the same hardware. In this way, virtualization is capable of reducing an organization’s expenses on hardware purchases. A Type 1 hypervisor is a hypervisor that is installed on a bare metal server, meaning that the hypervisor is also its own operating system (OS). Because of their proximity to the physical hardware, Type 1 hypervisors typically perform better than Type 2 hypervisors.
VMware Workstation and Oracle VirtualBox are both Type 2 hypervisors. Unlike a Type 1 hypervisor, a Type 2 hypervisor cannot be installed on a bare metal server. Instead, Type 2 hypervisors are applications that are installed on host OSes, such as Microsoft Windows, Mac OS, or Linux. These applications, which are also called hosted hypervisors, use calls to the host OS to translate between guest OSes in VMs and the server hardware. Because they are installed similar to other applications on the host OS, Type 2 hypervisors are typically easier to deploy and maintain than Type 1 hypervisors.