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

  • Exam Code: 642-427
  • Exam Name: Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0)
  • Updated: Jun 09, 2026
  • Q & A: 301 Questions and Answers

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

1. Partition A contains four route patterns. The calling search space assigned to Device B contains only Partition A.
When Device B dials 1136, which of the route patterns will be selected?

A) 1[1-4]XX
B) 11X!
C) 1[14]XX
D) 1[^2-8]XX


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


3. Please make the correct selection order for inbound POTS calls.
1.default dial peer
2.DNS with incoming called-number
3.ANI with destination pattern
4.originating voice port with configured dial peer port
5.ANI with answer address

A) 1 > 3 > 5 > 4 > 2
B) 2 > 5 > 3 > 4 > 1
C) 2 > 3 > 5 > 4 > 1
D) 3 > 5 > 2 > 4 > 1


4. Which size is the jitter buffer of the Cisco MTP transcoder?

A) 25 - 50 ms
B) 45 - 60 ms
C) 10 - 30 ms
D) 20 - 40 ms


5. Which QoS methodology combines strict priority queuing with class-based weighted fair queuing?

A) IP Frame Relay RTP Priority
B) Multilink
C) RSVP
D) IP RTP Priority
E) LLQ


Solutions:

Question # 1
Answer: B
Question # 2
Answer: D
Question # 3
Answer: B
Question # 4
Answer: D
Question # 5
Answer: E

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