【简答题】选择方框中合适的选项完成对话。 Lucy: Did you 1 this year, Kim? Kim: Yes, I did. Lucy: What are you going to do? Kim: Well. I'm going to 2 . Lucy: How are you going to do that? Kim: I’m going to practice soccer hard,...
【单选题】An administrator issues the show ip interface s0/0 command and the output displays that interface Serial0/0 is up, line protocol is up. What does 'line protocol is up' specifically indicate about the ...
A.
The cable is attached properly.
B.
CDP has discovered the connected device.
C.
Keepalives are being received on the interface.
D.
A carrier detect signal has been received from the connected device.