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Only need to practice for 20 to 30 hours
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Cisco 642-427 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Integrated Solution Troubleshooting | 10% | - Presence and IM service troubleshooting - Unity Connection integration issues |
| Topic 2: CUCM and Registration Troubleshooting | 25% | - Gateway and trunk registration (SIP, H.323, MGCP) - CUCM service availability and database replication - Endpoint and IP phone registration issues |
| Topic 3: Troubleshooting Methodology and Tools | 20% | - Monitoring and diagnostic tools: RTMT, Serviceability, traces, logs, debugs - Systematic troubleshooting approach |
| Topic 4: Call Setup and Dial Plan Troubleshooting | 25% | - Dial plan, route patterns, partitions, CSS, translation rules - Globalized call routing and number transformation - Intrasite, intersite, and off-net call failures |
| Topic 5: Advanced Features and Applications | 20% | - Extension Mobility Cross Cluster - Media resources, voice quality, and QoS issues - Call Control Discovery (CCD) and SAF |
Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) Sample Questions:
You have received a trouble ticket stating that an IP phone is not working. When asked, the user informs you the phone is displaying the message "Registration rejected." Which two issues are possible causes of this problem? (Choose two.)
- A. The IP phone's primary Cisco Unified CallManager has a database replication issue.
- B. The IP phone is not associated with a valid user profile.
- C. The primary Cisco Unified CallManager is unavailable and the CallManager group assigned to the IP phone does not include a secondary CallManager.
- D. The IP phone has not been defined in Cisco Unified CallManager.
- E. The IP phone is not getting an IP address.
Correct Answer: A,D 🗳️
How an H.323 gatekeeper can assume which bandwidth that will be required by a G.729 call?
- A. 8 kbps
- B. 24 kbps
- C. 16 kbps
- D. 64 kbps
Correct Answer: C 🗳️
Refer to the Exhibit.
The Exhibit shows the output of an unsuccessful RSVP call setup that uses G.711 codec. Which configuration on serial 0/1/0.121 would resolve that issue?
- A. ip rsvp bandwidth 96 80
- B. ip rsvp bandwidth 80 16
- C. ip rsvp bandwidth 40 40
- D. ip rsvp bandwidth 96 96
- E. ip rsvp bandwidth 40 24
Correct Answer: D 🗳️
Which two options are used by Cisco Service Advertisement Framework Forwarder to communicate with IP networks? (Choose two.)
- A. static NAT
- B. Cisco TCP client
- C. Cisco SAF client
- D. static configuration
- E. Cisco Discovery Protocol Neighbors Detail
- F. dynamic discovery
Correct Answer: C,F 🗳️
Refer to the Exhibit.
When a Cisco Unified Communications Manager Express advertises directory number pattern in the exhibit. What would the learned pattern be in the RTMT tool on the Cisco Unified Communication Manager?
- A. \+1408[2-9]XXXXXX and the ToDID will be 0:+1408[2-9]XXXXXX
- B. \+1408[2-9]XXXXXX and the ToDID will be 0:
- C. [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:+1408[2-9]XXXXXX
Correct Answer: D 🗳️
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