CISCO CCNA Exam – Q15

Refer to the exhibit.

CISCO CCNA Exam – Q15
Given this output for Switch C, what should the network administrator’s next action be?

A. Check the trunk encapsulation mode for Switch C’s fa0/1 port.
B. Check the duplex mode for Switch C’s fa0/1 port.
C. Check the duplex mode for Switch A’s fa0/2 port.
D. Check the trunk encapsulation mode for Switch A’s fa0/2 port.

Correct Answer: C

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.