Cisco 642-427 TVOICE practice test answers are available now, which are helpful in your preparation. There are 60-70 questions in real Cisco 642-427 TVOICE exam, which  will take the candidates 90 minutes to complete the test. The available language is English. Candidates can register Cisco 642-427 TVOICE exam at Pearson VUE testing center.

Share some Cisco 642-427 TVOICE practice test answers below.

Which step in the problem-solving model is important to accurately interview end users to get all the pertinent details of the problem?
A. Implement Action Plan
B. Define the Problem
C. Consider the Possibilities
D. Create Action Plan
E. Gather Facts
F. Observe Results
G. Restart Problem-Solving Process
H. Problem Resolved
Answer: E

Which of these is used by the Cisco IP phone to relay to the switch the information regarding how much power is needed?
A. the Cisco Discovery Protocol
B. IEEE 802.10 protocol
C. Cisco IP phones always use a fixed power consumption hased on the resistor, which is specific to the model
D. The switch model determines how much power is consumed by the different phone models
Answer: A

Which issue would cause an MGCP gateway to fail to register with Cisco Unified Communications Manager?
A. missing the configuration command isdn bind-13 ccm-manager under the ISDN interface
B. mismatched domain name on the MGCP gateway and Cisco Unified Communications Manager gateway configuration
C. misconfigured route group in Cisco Unified Communications Manager
D. incorrect MGCP IP address specified in the gateway configuration in Cisco Unified Communications Manager
Answer: B

If you need to avoid choppy speech, what is the maximum tolerable round-trip delay between two VoIP endpoints?
A. 100 ms
B. 200 ms
C. 300 ms
D. 400 ms
E. 500 ms
F. 800 ms
Answer: C

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