Which Layer 2 switch function encapsulates packets for different VLANs so that the packets transverse the same port and maintain traffic separation between the VLANs?
A. VLAN marking
B. VLAN numbering
C. VLAN DSCP
D. VLAN tagging
A. VLAN marking
B. VLAN numbering
C. VLAN DSCP
D. VLAN tagging