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Cisco 642-427 Exam Syllabus Topics:

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

Question 1

Which port number is used as a backhaul for Media Gateway Control Protocol?

A. 2427
B. 2426
C. 2458
D. 2429
E. 2456
F. 2428

Question 2

After you provision a new H.323 gateway to integrate with a Cisco Unified Communications Manager cluster, you see that the H.323 gateway shows unregistered in Cisco Unified CM.
Which action is needed to register the H.323 gateway with Cisco Unified Communications Manager?

A. H.323 gateways must use a loopback address to register to a Cisco Unified Communications Manager cluster.
B. Stop and restart the Cisco Call Manager service.
C. Create a VoIP dial peer on the H.323 gateway to point to the Cisco Unified Communications Manager cluster.
D. H.323 gateways never register with Cisco Unified Communications Manager. No action is required to address the unregistered state of the H.323 gateway with Cisco Unified CM.

Question 3

You are a voice technician. If you are required to solve latency issues in a VoIP network, which measures will you take? (Select three.)

A. Increase bandwidth
B. Fragment data packets
C. Prioritize voice packets
D. Use dejitter buffers

Question 4

Refer to the exhibit.

When calling 911, which gateway/route list is defined in the route pattern in Cisco Unified Communications Manager and used to route matched digits to the PSTN?

A. BRANCH
B. RouteListCdrc
C. standardLocalRG
D. nodeld = 1
E. SEP002290BA361B
F. LRG_RL

Question 5

Look at the following exhibit carefully.
You can click on the GK icon to view the output of the show gatekeeper endpoint command and click on each voice gateway to view the interface configuration. X of each popup can be clicked to back to the item.
As a network technician, you are recently responsible for configuring a gatekeeper with three local zones called East, West and EMEA. You have accomplished this task. In the East and EMEA zones, CallManager and the gateways are all registered in the West Zone, however, each of them should be registered in their own zone. In order to fix this issue, which measure should you take?

A. The zone name in the gateway command h323-gateway voip ID needs to be changed to the correct zone in both gateways.
B. The gatekeeper can only support one zone and all registering endpoints are being placed correctly in the first configured zone.
C. The IP address in the gateway command h323-gateway voip ID needs to be changed to that of the individual gateways in both gateways.
D. The gatekeeper needs to be stopped and restarted for the changes to take effect.

Solutions: