Which protocol is commonly used to carry multiple VLANs across a single physical link?

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Multiple Choice

Which protocol is commonly used to carry multiple VLANs across a single physical link?

Carrying multiple VLANs over a single physical link relies on tagging frames so they belong to the correct VLAN as they travel between switches. IEEE 802.1Q trunking does this by inserting a VLAN identifier into Ethernet frames on a trunk port, allowing one physical cable to carry traffic for several VLANs. The switches agree which VLANs are allowed on that link and how to route traffic to the appropriate access ports. This setup enables logical segmentation without needing separate cables for each VLAN. In contrast, Spanning Tree Protocol prevents switching loops, SSH is for secure remote access, and ARP maps IP addresses to MAC addresses. So the protocol used to carry multiple VLANs on one link is IEEE 802.1Q trunking.

Carrying multiple VLANs over a single physical link relies on tagging frames so they belong to the correct VLAN as they travel between switches. IEEE 802.1Q trunking does this by inserting a VLAN identifier into Ethernet frames on a trunk port, allowing one physical cable to carry traffic for several VLANs. The switches agree which VLANs are allowed on that link and how to route traffic to the appropriate access ports. This setup enables logical segmentation without needing separate cables for each VLAN. In contrast, Spanning Tree Protocol prevents switching loops, SSH is for secure remote access, and ARP maps IP addresses to MAC addresses. So the protocol used to carry multiple VLANs on one link is IEEE 802.1Q trunking.

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