An administrator replaced the 10/100 Mb NIC in a desktop PC with a 1 Gb NIC and now the PC will not connect to the network. The administrator began troubleshooting on the switch. Using the switch output shown, what is the cause of the problem?
- A. Speed is set to 100Mb/s.
- B. Input flow control is off.
- C. Encapsulation is set to ARPA.
- D. The port is administratively down.
- E. The counters have never been cleared.
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