CCNA 4 Quizzes

WEll I've taken all six for class... Here are the results of them:

Quiz 1: 95.7%
Quiz 2: 87.9%
Quiz 3: 97.8%
Quiz 4: 100% (shocked, it was ISDN PRI/BRI)
Quiz 5: 93.2%
Quiz 6: 89.5%

anyway, I got the following question in the third quiz:

A technician has used Telnet to gain remote access to a router that has no connectivity on its serial interface. Which command should be issued to determine if the serial cable is connected properly?

show controllers
show processes
show run
show status

My question is how is the technician gained access "remotely" if there was only one serial interface on the router, it would be completely impossible.... This is a great example of how Cisco's Quizzes are completely skewed....

anyway, the answer (if anybody cares) is Show Controllers, which will show whether layer 1 or layer 2 are currently configured properly... and my guess is that on this question, they were not. Well layer 1 might have been, but I can't say for sure without more information.