Chapter 7


1:

What SQ value shows up in the output of show modem operational-status , indicating the most stable connection possible?

A1:

0.

2:

True or False: Upgraded modem firmware does not have to be stored in flash after it is copied to the modem.

A2:

False. The router needs to access the version in flash at the next maintenance period or when the router is reloaded.

3:

What is the controller configuration command required to correctly configure the distance of a circuit that is 639 feet?

 Router(config-controller)#  cablelength short 655  

A3:

 Router(config-controller)#  cablelength short 655  

4:

If you are receiving a blue alarm, what bit pattern is the equipment receiving?

A4:

All 1s.

5:

What color is an alarm in which the controller status shows "Receiver has loss of Frame"?

A5:

Red Alarm.

6:

What happens if one end of a T1 receives a yellow signal?

A6:

A Yellow Alarm is declared because of an incoming yellow signal from the far end. In effect, the circuit is declared to be a one-way link.

7:

What information is negotiated in the IPCP stage of NCP of a modem dial call?

A7:

IP address, WINS address, and DNS address.

8:

What modem AT command shows the connection information for a call that was previously disconnected?

A8:

ATI11.

9:

What does BERT stand for?

A9:

Bit error rate tester.

10:

What is the primary advantage that the AS5300 MICA modems have over the Microcom modems in the AS5200 series?

A10:

With out-of- band signaling, the router has access to real-time data while the modem is connected.

11:

What does the call timer show?

A11:

The duration of the current active call in seconds.

12:

What command on an AS 5200 and AS5300 shows a summary of all disconnect reasons and the number of disconnects for every reason?

A12:

#show modem call-stats.

13:

What does CSM stand for and what is the command to show the processes of this device?

A13:

CSM stands for call switching module. The #debug modem csm command starts call switch module debugging.




Troubleshooting Remote Access Networks CCIE Professional Development
Troubleshooting Remote Access Networks (CCIE Professional Development)
ISBN: 1587050765
EAN: 2147483647
Year: 2002
Pages: 235

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