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Cisco 642-427 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Quality of Service and Voice Quality | - Latency, jitter, and packet loss analysis - QoS verification and troubleshooting - Voice quality diagnostics |
| Topic 2: Troubleshooting Methodology | - Structured troubleshooting process - Log and trace analysis - Diagnostic tools and techniques |
| Topic 3: IP Phones and Endpoints | - Firmware and endpoint connectivity issues - Phone registration and provisioning |
| Topic 4: Voice Gateways and Trunks | - PSTN connectivity issues - H.323 gateway troubleshooting - MGCP gateway troubleshooting - SIP trunk troubleshooting |
| Topic 5: Media Resources | - Media Termination Points - Transcoders and conference bridges - Music on Hold and annunciators |
| Topic 6: Cisco Unified Communications Manager | - Call processing issues - Device registration problems - Dial plan troubleshooting |
| Topic 7: Cisco Unified Presence and Mobility | - Presence service troubleshooting - Mobility and extension mobility issues |
| Topic 8: Cisco Unity and Voice Applications | - Messaging service troubleshooting - Voicemail integration issues |
Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) Sample Questions:
Refer to the exhibit.
When a Cisco Unified Communications Manager Express advertises the directory number pattern in the exhibit, what would the learned pattern be in the RTMT tool on the Cisco Unified Communications Manager?
- A. [2-9] XXXXXX and the ToDID will be 0:+1408[2-9]XXXXXX
- B. \+1408[2-9]XXXXXX and the ToDID will be 0:+1408[2-9]XXXXXX
- C. 1408[2-9]XXXXXX and the ToDID will be 0:+1408[2-9]XXXXXX
- D. \+1408[2-9]XXXXXX and the ToDID will be empty
- E. \+1408[2-9]XXXXXX and the ToDID will be 0:
Correct Answer: D 🗳️
As a network technician, you should be familiar with various commands. Which command displays a count of successful and unsuccessful control commands?
- A. show mgcp calls
- B. show mgcp
- C. debug mgcp statistics
- D. show mgcp statistics
Correct Answer: D 🗳️
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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. DNA
- C. sniffer filters
- D. RTMT
Correct Answer: A 🗳️
Please choose two methods of LRQ forwarding from the following items. (Select two.)
- A. LRQ static
- B. LRQ sequential
- C. LRQ blast
- D. LRQ init
Correct Answer: B,C 🗳️
Acme Corporation has Cisco IP Phones configured in a single-site Cisco Unified Communications Manager cluster. The 10 phones in the accounting department can call each other. Another 10
phones in the finance department can call each other. However, no phones in accounting can call the phones in finance.
Which change is needed to allow all accounting phones to call all finance phones?
- A. Ensure that all accounting phones are in a CSS that contains the partition that includes the finance phones.
- B. Ensure that all finance phones are in a CSS that is in a partition that includes the accounting phones.
- C. Ensure that all phones use SCCP signaling.
- D. Ensure that all phones are the same Cisco IP Phone model.
- E. Ensure that all phones use SIP signaling.
Correct Answer: A 🗳️
