Which element enables communication between guest VMs within a virtualized environment?
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A. B. C. D.C.
Each VM is provided with a virtual NIC (vNIC) that is connected to the virtual switch.
Multiple vNICs can connect to a single vSwitch, allowing VMs on a physical host to communicate with one another at layer 2 without having to go out to a physical switch.
The element that enables communication between guest VMs within a virtualized environment is the virtual switch or vSwitch.
A virtual switch is a software-based network switch that allows communication between virtual machines (VMs) running on the same physical host. It functions like a physical Ethernet switch, but it exists entirely in software.
When a VM sends network traffic, the traffic is sent to the vSwitch, which then routes the traffic to the appropriate destination VM. The vSwitch also provides other networking functions such as VLAN tagging, Quality of Service (QoS), and security features like port security.
The hypervisor is the software that enables virtualization and runs the virtual machines, but it does not handle the network traffic routing between VMs. The virtual router is a software-based router that provides connectivity between virtual networks and physical networks but does not handle communication between guest VMs.
The physical network interface card (pNIC) is a physical device that provides connectivity between the host and the physical network. It does not directly handle communication between guest VMs.
Therefore, the correct answer is C. vSwitch.