Cisco 642-427 Questions & Answers - in .pdf
- Total Q&A: 301
- Update: May 30, 2026
- Price: $59.99
- Vendor: Cisco
- Exam Code: 642-427
- Exam Name: Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0)
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Cisco 642-427 Q&A - Testing Engine
- Total Q&A: 301
- Update: May 30, 2026
- Price: $59.99
- Vendor: Cisco
- Exam Code: 642-427
- Exam Name: Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0)
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Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) Sample Questions:
1. 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) Fragment data packets
B) Increase bandwidth
C) Prioritize voice packets
D) Use dejitter buffers
2. Refer to the exhibits.











When the IP phone 2001 places a call to 9011 49403021 56001, the call is sent to the Cisco Unified Border Element as 40302156001 which is what the ITSP expects to receive. The ITSP support personnel claim that they never saw the call. Issuing the debug CCSIP message command on the Cisco Unified Border Element results in the message "SIP/2 0 404 Not Found".
Refer to the Cisco Unified Border Element configuration, debug voice dial and ccsip messages exhibits. Which situation can cause this issued?
A) The command allow-connections sip to h323 is missing
B) SIP error 404 means that a codec mismatch occurred Cisco Unified Communications Manager is sending the call as an early offer with G.711 codec.
C) The Cisco Unified Communications Manager is rnisconfigured. The SIP invite should be sent to the ITSP at 10.1.2.1.2. The debug ccsip message shows the SIP invite being sent to 10.12.1.2.
D) The Cisco Unified Bolder Element is configured as an MGCP gateway also so that the call is attempted via the PSTN
3. In a three-party conference call, what is the total number of active streams available?
A) 12
B) 4
C) 6
D) 9
E) 3
F) 1
4. DRAG DROP

5. Which Cisco Unified Communications Manager troubleshooting tool can be used to look at detailed specific events, such as dial plan digit analysis, as they die happening?
A) RTMT real-time trace
B) traceroutes
C) Cisco Unified Dialed Number Analyzer
D) Cisco Unified Communications Manager alerts
E) syslog output
F) RTMT performance log viewer
Solutions:
Question # 1 Answer: A,B,C | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: Only visible for members | Question # 5 Answer: A |
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