Refer to the exhibit.
You cannot establish IP communication over interface GigabitEthernet 0/4 with an access point connected to it.
Which reason is the cause of the issue?
A . Interface GigabitEthernet 0/4 is mirroring traffic and cannot be used at this time.
B . Line protocol is down on the interface because “output flow-control is unsupported”.
C . The problem is due to physical connectivity. The Ethernet cable must be revised.
D . A SPAN session is configured on the Switch destination interface GigabitEthernet 0/4.
Answer: D
Explanation:
The port is a part of a monitor session (a SPAN session) as a destination port. Look for "monitor session" commands in your configuration that refer to the port, and if you do not need this monitoring session, you
may remove it from your configuration. That will make the port work normally again.
Reference: https://supportforums.cisco.com/discussion/11667971/gigabitethernet201-down-line-protocol-downmonitoring
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