Which physical component is distributed among multiple virtual machines running on the same hypervisor?

External storage is typically accessed by VMs but is not necessarily distributed among them as a single shared physical component of the hypervisor's immediate resources in the same way CPU/RAM are.

While VMs use virtual network interfaces, the underlying physical network interface card (NIC) is usually dedicated or shared at a more granular level by the hypervisor, not explicitly distributed as a primary resource type in the same manner as CPU and memory.

A backplane network is an internal communication bus within a physical server or chassis, connecting components, but it is not directly 'distributed' to virtual machines; rather, VMs use resources connected to it.

Hardware resources, such as CPU cores, RAM, and I/O bandwidth, are virtualized and distributed by the hypervisor among all the virtual machines running on the physical host. Each VM is allocated a logical slice of these underlying physical resources to operate.