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

  • Exam Code: 642-427
  • Exam Name: Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0)
  • Updated: Jun 01, 2026
  • Q & A: 301 Questions and Answers

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

1. If after observing the results of your action plan, the problem still remains, at what point should you restart the troubleshooting process?

A) Problem Resolved
B) Implement Action Plan
C) Define the Problem
D) Document Facts
E) Consider the Possibilities
F) Create Action Plan
G) Gather Facts
H) Observe Results


2. Refer to the exhibit Which statement is true about the Cisco SAF Forwarder configuration on a Cisco Unified Communications Manager Express?

A) The Cisco Communications Manager Express will be able to register with the Cisco SAF Forwarder, but an error message will be displayed regarding the missing trunk configuration
B) The Cisco Unified Communications Manager Express will not be able to register with the Cisco SAF Forwarder because call control services not been configured
C) The Cisco Unified Communications Manager Express will not be able to register with the Cisco SAF Forwarder because the service-family external-client configuration is missing.
D) The Cisco Unified Communications Manager Express will be able to register with the Cisco SAF Forwarder
E) The QSCC Unified Communications Manager Express will not be able to register with the Cisco SAF Forwarder because the trunk configuration under voice service saf is missing


3. Which troubleshooting tool is the most effective in parsing the large traces of call setup on many Cisco IP Phones that are registered in a Cisco Unified Communications Manager cluster to just two Cisco IP Phones?

A) the Triple combo tool
B) RTMT
C) sniffer filters
D) DNA


4. Which two options are used by Cisco Service Advertisement Framework Forwarder to communicate with IP networks? (Choose two.)

A) Cisco SAF client
B) static NAT
C) Cisco Discovery Protocol Neighbors Detail
D) Cisco TCP client
E) dynamic discovery
F) static configuration


5. Which of these is used by the Cisco IP phone to relay to the switch the information regarding how much power is needed?

A) Cisco IP phones always use a fixed power consumption hased on the resistor, which is specific to the model
B) The switch model determines how much power is consumed by the different phone models
C) the Cisco Discovery Protocol
D) IEEE 802.10 protocol


Solutions:

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

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