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Cisco 642-427 Exam Syllabus Topics:

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

1. Refer to Exhibits.

When the remote destination of IP phone 3001 places an inbound PSTN call to extension 3002, the caller ID that is displayed on extension 3002 is 7700990255 of 3001. Which course of action can resolve this issue?

A) Change the service parameter matching Caller ID with remote Destination to Partial Match.
B) Change the remote destination number to 7700l in the configuration.
C) Change the service parameter Number of Digits for caller ID partial Match to 12.
D) Change the Privacy Setting from Default to Off.

2. Remote branch offices with Cisco IP Phones have just been implemented across a 2 Mb/s WAN link from your existing Cisco Unified Communications Manager cluster in headquarters. The WAN links are heavily utilized for data traffic. Users from the branch office report poor audio quality when they call the headquarters.
Which approach can you implement to directly improve audio quality in this scenario?

A) Implement CBWFQ.
B) Implement TCP header compression.
C) Implement LLQ.
D) Implement weighted random early detection.

3. Two Cisco Unified Communications Manager clusters have recently been installed. One is in Tokyo and the other in Chicago connected by a WAN link. You have started the configuration of a SIP trunk and you are integrating the dial plans. All phones in Tokyo can call all phones in Chicago, but no phones in Chicago can call Tokyo phones.
Which two statements are possible causes? (Choose two.)

A) The Tokyo SIP trunk inbound CSS does not contain the partition of the Tokyo phones.
B) The SIP trunk in Chicago is in a CSS that is not in the partition of the Chicago phones.
C) Tokyo phones are in a CSS that is not in the partition of the route pattern to call from Tokyo to Chicago.
D) The CSS of the Chicago phones does not include the partition of the route pattern to point to Tokyo.
E) The SIP trunk is configured from Tokyo to Chicago, but not from Tokyo to Chicago.

4. You have been employed as a network technician in a middle-sized company. Suppose that the default dial peer is matched. Please choose a capability that you must configure.

A) disable VAD
B) enable dtmf-relay
C) disable DID
D) invoke a Tcl application

5. As a network technician, you should know the VoIP network components well. Which one of the following components can provide the CAC, bandwidth control and management, and address translation?

A) Gatekeeper
B) Call agent
C) Gateway
D) MCU

Solutions: