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Cisco 642-427 : Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0)

642-427 real exams

Exam Code: 642-427

Exam Name: Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0)

Updated: Sep 04, 2025

Q & A: 301 Questions and Answers

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

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 maximum conference-participants value must be configured > 0.
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 Command dsp service dspfarm must be configured under the voice-card configuration.


2. Please choose two methods of LRQ forwarding from the following items. (Select two.)

A) LRQ blast
B) LRQ init
C) LRQ static
D) LRQ sequential


3. Refer to the exhibit.

An intercluster call was placed from extension 2001 to 3001. The SDI trace from the calling cluster. Which RTP port was used by the calling phone?





A) 18462
B) 19470
C) Not possible to tell because a second invite was sent because of call failure
D) 4000
E) 8000


4. When parsing trace output after the call routing decision and path selection have been made, which two records can be found in the CCM|RouteList? (Choose two.)

A) RouteListName
B) PretransfromDigitString
C) findLocalDevice
D) RouteListCdrc
E) CallingPartyNumber
F) PretransformCallingPartyNumber


5. Which two issues can cause a Cisco Unified Communications Manager to fail to register with its Cisco SAF Forwarder? (Choose two.)

A) CCD requesting service was not activated.
B) Incorrect user credentials were used on the SAF Forwarder.
C) An H.323 SAF trunk was configured instead of a SIP SAF trunk.
D) CCD advertising service was not activated.
E) No directory number patterns were configured on the Cisco Unified Communications Manager.


Solutions:

Question # 1
Answer: D
Question # 2
Answer: A,D
Question # 3
Answer: A
Question # 4
Answer: A,D
Question # 5
Answer: A,B

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