What statement about virtual switches in a virtualized environment is true?

In a virtualized environment, the statement that virtual switches forward frames at the Physical Layer is accurate. Virtual switches function similarly to physical switches in that they handle the transmission and reception of data frames over the network. When virtual switches operate, they deal with data encapsulated in frames, which are then forwarded as needed to virtual machines or out to physical network interfaces. This function occurs at Layer 2 of the OSI model, which is often characterized as the Data Link Layer where switching takes place.

While virtual switches do have the capability to interact with physical network components, they fundamentally manage Layer 2 operations by utilizing MAC addresses to forward frames to the appropriate destination. This is an essential feature of virtual switches, enabling efficient communication between virtual machines and between virtual machines and other network resources, including physical networks.

Understanding the function of virtual switches is crucial for effective network management in a virtualized environment, ensuring communication is seamless and efficient across virtual and physical boundaries.