In a virtual machine, which component appears as an Ethernet adapter?

In a virtual machine, which component appears as an Ethernet adapter?

• A. Virtual HBA
• B. Virtual NIC
• C. Virtual Switch
• D. Virtual Router

Answer: (B)

A virtual NIC is the network interface presented to the guest operating system as its Ethernet adapter. The hypervisor creates this virtual network card inside the VM and connects it to a virtual switch, which ties the VM into the host’s network and, if needed, to other VMs or external networks. The guest OS uses the virtual NIC just like a physical Ethernet card, configuring IP settings, MAC addresses, and routing. Other components play different roles: a virtual HBA handles storage connectivity rather than network traffic; a virtual switch provides the underlying network switching between virtual NICs but isn’t the adapter inside the VM itself; a virtual router is a routing device used to forward traffic between networks. Hence, the VM’s Ethernet adapter is the virtual NIC.

A virtual NIC is the network interface presented to the guest operating system as its Ethernet adapter. The hypervisor creates this virtual network card inside the VM and connects it to a virtual switch, which ties the VM into the host’s network and, if needed, to other VMs or external networks. The guest OS uses the virtual NIC just like a physical Ethernet card, configuring IP settings, MAC addresses, and routing.

Other components play different roles: a virtual HBA handles storage connectivity rather than network traffic; a virtual switch provides the underlying network switching between virtual NICs but isn’t the adapter inside the VM itself; a virtual router is a routing device used to forward traffic between networks. Hence, the VM’s Ethernet adapter is the virtual NIC.