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Cisco 642-427 Exam Syllabus Topics:

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

Question 1

Refer to Exhibit.

When the user tried to configure the command maximum session 5 under the dspfarm profile 1, the error shown in the exhibit was reported. Which course of action will resolve this issue?

A. The Command dsp service dspfarm must be configured under the voice-card configuration.
B. Configure the dspfarm all command under the voice card.
C. Ensure that the conference bridge is not registered in Cisco Unified Communications Manager.
D. The maximum conference-participants value must be configured > 0.

Question 2

As a network administrator, you should know the features of H.323 gatekeeper. Which H.323 gatekeeper feature allows calls to be routed to a specific zone, regardless of the zone prefix in the address?

A. Subnet scoping
B. Default technology prefix
C. E.164 registration
D. Technology prefix with hop-off

Question 3

Your Cisco Unified CallManager 5.0 cluster has just started to use a third-party LDAP service. Users complain that they are unable to make changes to their passwords in their Cisco Unified CallManager user web pages. How should you resolve this problem?

A. Have the users make changes to their passwords in the LDAP database.
B. Configure automatic synchronization of the LDAP database.
C. Restart the phones that are having problems to reinitialize the LDAP database.
D. Change the passwords on the IP phone screen using the TUI.

Question 4

You are a network technician with many years' experience. Many users complain that they can hear echo when their calls go out an H.323 gateway. You have made some testing for the gateway and have changed the configuration. So the ERL level turns to be 6 dB. Furthermore, the echo-cancel coverage value is raised to 64 ms. Please choose the effect on the voice quality after this modification.

A. The echo canceller will take 2-3 seconds longer to converge at the beginning of the call.
B. Consonants will be chopped by the echo canceller.
C. The ends of sentences will be chopped by the echo canceller.
D. The increase in echo-cancel coverage will have no effect on voice quality.

Question 5

Refer to the exhibit.

All calls to 4565000 must be routed to the Cisco Unified Communications Manager server
10.10.10.100. All other 7-digit numbers that start with 456 must be routed to the third-party PBX.
Which change is needed to route calls to 4565000 to the Cisco Unified CM server 10.10.10.100 and route all other 7-digit numbers that start with 456 to the third-party PBX?

A. Change dial peer voice 1 pots to dial peer voice 100 pots.
B. Change dial peer 1 to destination-pattern 456....
C. Change dial peer 2 to session target 10.10.10.100.
D. Remove prefix 456 from dial peer 1.

Solutions: