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Multiple Choice

When a port on a switch is configured to carry traffic for more than one VLAN from one switch to another switch it is called ________________.

When a port is used to carry traffic for more than one VLAN between switches, that port is a trunk port. A trunk uses VLAN tagging (typically 802.1Q) to label frames with their VLAN ID, allowing multiple VLANs to traverse a single physical link. The traffic for the native VLAN may be untagged, while all other VLANs’ traffic is tagged so the receiving switch can route it correctly to the right VLANs. In contrast, an access port carries traffic for only one VLAN to end devices, and a routed port operates at Layer 3, not for multiple VLANs across a single link. A hybrid port can handle both tagged and untagged traffic in some implementations, but the standard term for inter-switch VLAN trunking is trunk port.

When a port is used to carry traffic for more than one VLAN between switches, that port is a trunk port. A trunk uses VLAN tagging (typically 802.1Q) to label frames with their VLAN ID, allowing multiple VLANs to traverse a single physical link. The traffic for the native VLAN may be untagged, while all other VLANs’ traffic is tagged so the receiving switch can route it correctly to the right VLANs. In contrast, an access port carries traffic for only one VLAN to end devices, and a routed port operates at Layer 3, not for multiple VLANs across a single link. A hybrid port can handle both tagged and untagged traffic in some implementations, but the standard term for inter-switch VLAN trunking is trunk port.