Virtual Machine NIC Sharing
Question
Which of the following allows virtual machines to share the NIC of the host?
Answers
Explanations
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A. B. C. D.C.
The correct answer is C. Bridging.
Explanation:
Virtualization is the process of creating a virtual version of something, such as a virtual machine (VM). A VM is a software implementation of a physical machine that runs an operating system (OS) and applications just like a physical machine. One of the key advantages of virtualization is the ability to run multiple VMs on a single physical machine.
When it comes to networking in virtual environments, VMs can be connected to the network using a virtual network interface card (NIC). The virtual NIC appears as a physical NIC to the VM, but it is actually a software-defined interface that connects the VM to the virtual network.
To share the physical NIC of the host machine with the virtual machines, a network bridge can be used. A network bridge is a software-defined interface that connects two or more network segments together. In the context of virtualization, a bridge connects the virtual NICs of the VMs to the physical NIC of the host machine.
When a bridge is used, the physical NIC of the host machine is shared among the virtual machines. This allows the virtual machines to communicate with each other and with other devices on the network using the same physical NIC as the host machine.
In contrast, virtual LANs (VLANs) and Network Address Translation (NAT) do not allow virtual machines to share the NIC of the host. VLANs are used to segment a physical network into multiple virtual networks, and NAT is used to translate IP addresses between different networks. While both VLANs and NAT can be used in virtual environments, they do not provide the same level of network connectivity as a bridge.
Virtual NICs (vNICs) are another option for connecting virtual machines to the network, but they do not allow the virtual machines to share the physical NIC of the host. Instead, each virtual machine is assigned its own virtual NIC, which is connected to a virtual switch that is responsible for forwarding network traffic between the virtual machines and the physical network.
