Cisco 300-515 Exam - Topic 7 Question 35 Discussion
How do Ethernet virtual circuits provide a way for service providers to maximize the use of VLAN tags'-1
C) They separate the classification and forwarding concepts for VLAN tagging which allows multiple switch ports to use the same VLAN ID without it being configured globally.
A) They add an additional tag to VLANs that allows up to two switch ports to use the same globally configured VLAN ID.
B) They redefine the VLAN tag to include classification, forwarding, and QoS using MPLS labels and EXP bits
D) They assign VLAN IDs to VTP domains so that the same VLAN ID are used more than once globally.
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