Comprehensive and Detailed Explanation (HCIA–Cloud Computing aligned):
In the HCIA–Cloud Computing virtualization domain, the hypervisor is the core software layer responsible for abstracting and managing physical compute resources and enabling multiple virtual machines to run on a single physical host.
A hypervisor is also commonly referred to as a Virtual Machine Monitor (VMM). The VMM directly manages CPU scheduling, memory allocation, and virtual device access for guest operating systems.
The other options are not equivalent to a hypervisor:
VRM (Virtual Resource Management) refers to centralized management components used in platforms like FusionCompute.
VNM (Virtual Network Management) relates to virtual networking control.
VPM (Virtual Power or Performance Management) is not a hypervisor concept in HCIA materials.
Therefore, the correct answer is VMM.