Which line from the output of the show ip interface command indicates a layer 1 problem?
A. Serial0/1 is up, line protocol is down
B. Serial0/1 is down, line protocol is down
C. Serial0/1 is up, line protocol is up
D. Serial0/1 is administratively down, line protocol is down
Answer:B
Which line from the output of the show ip interface command indicates a layer 1 problem?
A. Serial0/1 is up, line protocol is down B. Serial0/1 is down, line protocol is down C. Serial0/1 is up, line protocol is up D. Serial0/1 is administratively down, line protocol is down