Chapter 7, Problem 2RQ

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A device that operates at a data link layer for transferring the framers between nodes is called as “virtual switch”.

Hence, the correct answer is option “B”.

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Explanation of Solution

Virtual switch:

It is a logically defined device that works at the data link layer for passing the frames between the nodes. Such kind of devices is also called as bridge.

• It enables the VMs to communicate with each other and also with the nodes that reside on physical LAN or WAN.
• It is possible for a single host to support multiple virtual switches, which in turn is controlled by the hypervisor.

Explanation for incorrect options:

Virtual firewall:

• Virtual firewall imitates the hardware firewall and is hosted in a virtualized environment. It is the installation of firewall operations in the VM...