單項選擇題

You’re a network administer and you issue the command (show port 3/1) on an Ethernet port. Toyour surprise you notice a non-zero entry in the ’Giants’ column. What could be the cause of this?()

A.IEEE 802.1Q
B.IEEE 802.10
C.Misconfigured NIC
D.User configuration
E.All of the above

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