单选题If you needed to transport traffic coming from multiple VLANs （connected between switches）， and your CTO was insistent on using an open standard，which protocol would you use？（）A802.11BBspanning-treeC802.1QDISLEVTPFQ.921
单选题
If you needed to transport traffic coming from multiple VLANs （connected between switches）， and your CTO was insistent on using an open standard，which protocol would you use？（）
A
802.11B
B
spanning-tree
C
802.1Q
D
ISL
E
VTP
F
Q.921
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