Go back to 642-359 - Implementing Cisco Storage Network Solutions

Question :-

While examining the output of a show run command on the Cisco MDS 9000 Series, you notice that the statement interface GigabitEthernet2/1.2 appears in the output. What does this mean?
It refers to the second FCIP tunnel that is configured on port GigabitEthernet2/1.
It refers to a VLAN subinterface on port GigabitEthernet2/1.
It means that port GigabitEthernet2/1 is assigned to VSAN 2.
It is a mistake in the interface configuration.

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