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Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) Sample Questions:

1. A junior engineer has attempted to configure an MGCP gateway to register with a Cisco Unified Communications Manager cluster.
Which troubleshooting approach is most relevant to achieving MGCP gateway registration with the Cisco Unified CM cluster?

A) Make the gateway hostname match the MGCP gateway name in Cisco Unified CM.
B) Remove all gatekeeper-related commands on the MGCP gateway.
C) Remove all H.323-related commands on the MGCP gateway.
D) Create a VoIP dial peer on the MGCP gateway to point to the Cisco Unified CM cluster.

2. Look at the following exhibit carefully.
You can click the Voice Gateway for the BR2 location to see the output from the debug voice ccapi inout command and click on 10.1.5.10 to see and search the trace file output. You can also enter a string in the Search box and click the Find button to search the output. X can be clicked to back to the item.
As a network technician, you have recently configured a trunk between the Cisco Unified CallManager cluster at 10.1.5.10 and a CME at a 10.3.130.1. In the testing of this configuration, you discover that you can complete calls when dialing from ext.2020 to ext.4001, however, a fast busy can only be received when dialing from ext.4001 to ext.2020.
Please choose the most possible reason of this issue from the following statements.

A) An incorrect CSS has been applied to the gateway at HQ.
B) The h323-gateway voip bind srcaddr 10.3.130.1 command has been omitted from the BR2 configuration.
C) A CSS has been omitted from the trunk configured to BR2.
D) A transaction rule has been applied that is keeping the call from being completed.

3. You have been presented with a trouble ticket from an end user who works at a remote location that is served by a Cisco Unified Communications Manager Express. The user reports being unable to place calls to international numbers, but all other calls work properly and other users at this location can place international calls. Which two troubleshooting techniques would be helpful in resolving this issue? (Choose Two)

A) show output for the T1 controller and voice port configuration in the voice gateway.
B) Class of Restriction baseline configuration for the user on Cisco Unified Communications Manager Express
C) Cisco IOS debug tools
D) show output of the voice translation rules in the voice gateway
E) show output of the ephone and ephone -dn configurations.

4. Refer to the exhibit.

The output of the show call active voice command shows an ERL level of 25. Which statement about the ERL is true?

A) ERL 25 shows how much echo cancellation has been performed by the echo canceller in the router.
B) The ERL level is the absolute sum of OutSignalLevel and InSignalLevel, which equals 30. The DSP has an error margin of 5 dB.
C) The correct ERL could not be calculated by the echo canceller. The signal is being reflected with 0 dB loss.
D) The ERL value of 25 is not valid and hence should be ignored; however, the echo canceller is being organized.

5. As a voice administrator, you have received reports on issues with call dropping and call failures over a period of time. While troubleshooting, you find that there is a Code Yellow alert due to high CPU usage. You collect the logs that are shown below from the CLI of Cisco Unified Communications Manager.
Nov5 05:12:15, cm01, Error, Cisco CallManager, ccm: 147897: Nov
05 05:12:15.268 UTC. %CCM_CALLMANAGER-CALLMANAGER-3-CodeYellowExit:
CodeYellowExit Expected Average Delay:0 Entry Latency:20 Exit Latency:8
Sample Size:10Time Spent in Code Yellow:2 Number of Calls Rejected Due to
Call Throttling:60 Total Code Yellow Exit:14 High Priority Queue Depth:0
Normal Priority Queue Depth:5 Low Priority Queue Depth:4 Cluster ID:StandAloneCluster Node ID:cms01, 3653
From these logs, what does "Time Spent in Code Yellow" indicate?

A) A critical overload condition exists that may impact phone registration after 2 hours of this alert.
B) There is a call failure and, as a result, one call is rejected every 2 milliseconds.
C) The server stayed in a Code Yellow state for 2 seconds.
D) The server needs a reboot within 2 hours.
E) The server stayed in a Code Yellow state for 2 milliseconds.
F) The server stayed in a Code Yellow state for 2 minutes.

Solutions: