For proper communication, what is the correct VLAN tagging configuration of the external switch port represented by the red arrow?
Click the Exhibit button.
Exhibit:
A. tagged for VLANs 1, 10, 20, 30
B. untagged for VLANs 1, 10, 20, 30
C. tagged for VLAN 10, untagged for VLANs 1, 20, 30
D. untagged for VLAN 1, tagged for VLANs 10, 20, 30