Refer to the exhibit.

Given this output for SwitchC, what should the network administrator’s next action be?

A.
Check the trunk encapsulation mode for SwitchC’s fa0/1 port.

B.
Check the duplex mode for SwitchC’s fa0/1 port.

C.
Check the duplex mode for SwitchA’s fa0/2 port.

D.
Check the trunk encapsulation mode for SwitchA’s fa0/2 port.

Explanation:
Here we can see that this port is configured for full duplex, so the next step would be to check the
duplex setting of the port on the other switch. A mismatched trunk encapsulation would not result
in input errors and CRC errors.