Which resource can be shared by multiple virtual machines on the same physical host?

A disk (or storage) is a common resource that can be shared by multiple virtual machines (VMs) on the same physical host, especially in virtualized environments using shared storage technologies like SAN or NAS. This allows VMs to access the same data or even boot from the same image. A VM configuration file is unique to each VM, defining its specific settings and virtual hardware. Applications are installed within individual VMs and are not typically shared across them in a way that implies a shared resource at the hypervisor level. Each VM runs its own independent operating system instance.