Which of the following VMs use hosted hypervisors? 1 pointOpen-source KVMMicrosoft Hyper-VOracle VirtualBoxVMware ESX

The VMs that use hosted hypervisors from the given options are:

1. Open-source KVM
2. Oracle VirtualBox

Explanation:

A hosted hypervisor, also known as a type 2 hypervisor, is installed on an operating system as a software application; it allows a computer to support multiple guest VMs by sharing resources, like processing and memory.

Open-source KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions. It's a type 2 or hosted hypervisor as it requires an operating system to install on.

Oracle VirtualBox is also a type 2 or hosted hypervisor. It needs an existing operating system to install and run.

On the other hand, Microsoft Hyper-V and VMware ESX are type 1 or bare-metal hypervisors. They run directly on the host's hardware to control the hardware and to manage guest operating systems.