CCNA 4 Module 3 V3.1 Answers
1. A technician is testing the functionality of a recently installed router. The technician is
unable to ping the serial interface of a remote router. The technician executes the show
interface serial 0/0 command on the local router and receives the following output:
Serial0/0 is up, line protocol is down(disabled)
What are possible causes for this command output? (Choose two.)
interface missing the no shutdown command
clockrate command missing
CSU/DSU failed
interface shutdown due to high error rate
cable missing
2. 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
Read more…