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Cisco 642-427 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Advanced Features and Applications | 20% | - Media resources, voice quality, and QoS issues - Extension Mobility Cross Cluster - Call Control Discovery (CCD) and SAF |
| Call Setup and Dial Plan Troubleshooting | 25% | - Dial plan, route patterns, partitions, CSS, translation rules - Intrasite, intersite, and off-net call failures - Globalized call routing and number transformation |
| Integrated Solution Troubleshooting | 10% | - Presence and IM service troubleshooting - Unity Connection integration issues |
| Troubleshooting Methodology and Tools | 20% | - Systematic troubleshooting approach - Monitoring and diagnostic tools: RTMT, Serviceability, traces, logs, debugs |
| CUCM and Registration Troubleshooting | 25% | - Gateway and trunk registration (SIP, H.323, MGCP) - Endpoint and IP phone registration issues - CUCM service availability and database replication |
Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) Sample Questions:
For settings that are related to Cisco Unified Communications Manager Device Mobility, which option shows the correct order of priority for overlapping parameters, from highest to lowest?
- A. phone settings, home device pool settings, roaming device pool settings
- B. roaming device pool settings, phone settings, home device pool settings
- C. home device pool settings, phone settings, roaming device pool settings
- D. home device pool settings, roaming device pool settings, phone settings
Correct Answer: B 🗳️
Refer to the exhibit. You have received a trouble ticket that two engineers at the HQ site tried to conference at a user location at the Branch site and the ad-hoc conference failed.
Further investigation reveals that the remote user can occasionally be conferenced in. Phones are configured to use G.711 for intra-site calls and G.729 for inter-site calls. All phones at the remote site are configured to use MRGL_Branch, which contains only the media resource group named BRANCH.
What should be done to correct this issue?
- A. The number of sessions allowed per conference should be increased.
- B. The software conference bridge CFB_2 should be removed from the Branch media resource group.
- C. The hardware conference bridge CFB0012005FEEF1 should be listed first in the Branch media resource group so it is utilized if it is available.
- D. Additional hardware conference resources should be added.
Correct Answer: B 🗳️
Explanation: Only visible for Pass4sures members. You can sign-up / login (it's free).
Which option can cause an offnet call to fail?
- A. IP subnet mismatch
- B. voice codec mismatch
- C. phone type mismatch
- D. phone protocol mismatch
Correct Answer: B 🗳️
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 use SIP signaling.
- E. Ensure that all phones are the same Cisco IP Phone model.
Correct Answer: A 🗳️
What is the default maximum login time for a user in Cisco Extension Mobility?
- A. 1 hour
- B. 8 hours
- C. 12 hours
- D. 10 hours
- E. 4 hours
- F. 2 hours
Correct Answer: B 🗳️
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