Which feature facilitates the tagging of a specific VLAN?
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The feature that facilitates the tagging of a specific VLAN is Encapsulation.
VLAN stands for Virtual Local Area Network. It is a technique used to create logical networks within a physical network infrastructure. By implementing VLANs, a network administrator can group hosts together in a logical network, regardless of their physical location.
VLAN tagging is the process of adding a tag to Ethernet frames to identify which VLAN the frame belongs to. When a frame enters a switch port configured for VLANs, the switch adds a VLAN tag to the frame. The VLAN tag includes information about the VLAN ID to which the frame belongs.
Encapsulation is the process of adding a header to the original data, providing additional information about the data and how it should be handled. In the case of VLANs, encapsulation is used to add the VLAN tag to Ethernet frames.
When a switch receives a frame with a VLAN tag, it uses the tag to forward the frame to the appropriate VLAN. If a switch receives a frame without a VLAN tag, it uses the port configuration to determine which VLAN the frame belongs to.
In summary, VLAN tagging is facilitated by encapsulation, which adds a VLAN tag to Ethernet frames to identify which VLAN the frame belongs to.