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Cisco 642-457 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Bandwidth Management & Call Admission Control | 20% | - Media resources: MTP, transcoders, conferencing, MOH - RSVP agents and SIP precondition - Automated Alternate Routing (AAR) - Regions and locations configuration - Gatekeeper-based CAC |
| Topic 2: Mobility Features | 15% | - Mobility features verification - Extension Mobility implementation - Device Mobility configuration |
| Topic 3: Multisite Dial Plan Implementation | 25% | - Globalized call routing and E.164 dialing - Partition, CSS, and numbering plan design - Local Route Groups and global transformations - Tail-End Hop-Off (TEHO) and PSTN backup |
| Topic 4: Multisite CUCM Infrastructure & Trunks | 20% | - SAF Forwarder and SAF CCD implementation - Implement H.323, MGCP, and SIP gateways - Multisite architecture and connectivity options - Configure intercluster trunks and call control discovery |
| Topic 5: Call Survivability & Redundancy | 20% | - Failover and fallback verification - Centralized call processing redundancy - SRST and CUCM Express survivability - MGCP fallback configuration |
Cisco Implementing Cisco Unified Communications Manager, Part 2 v8.0 (CIPT2 v8.0) Sample Questions:
Which option configures the secondary dial tone option for SRST mode to let the users hear the dial tone for PSTN calls?
- A. ccm-manager secondary dialtone 0
- B. call-manager-fallback secondary dialtone 0
- C. dial-peer voice 1 pots secondary dialtone 0
- D. voice service voip secondary dialtone 0
Which three of the following are steps in configuring MGCP Fallback and Cisco Unified SRST? (Choose three)
- A. Enable and configure the MGCP fallback and Cisco Unified SRST features on the IOS gateways.
- B. Implement a simplified SRST dial plan on the remote-site-gateways to ensure connectivity for remote-site phones in SRST mode.
- C. Define the SRST reference for phones in the Device Pool configuration
- D. Enable and configure the MGCP fallback on the IOS gateway but not Cisco Unified SRST since it is enabled automatically.
- E. Enable SIP trunking between both remote and hub sites to provide mesh coverage.
- F. Define the SRST reference in the configuration on the IP Phones.
Which configuration command disables the secondary dial tone on the branch office ISR for users calling from the PSTN into the branch office during a WAN failure?
- A. voice translation-rule
- B. direct-inward-dial
- C. application
- D. incoming called-number
Assume that local route groups are configured. When an IP phone moves from one device mobility group to another, which two configuration components are not changed? (Choose two.)
- A. phone button settings
- B. SRST reference
- C. IP subnet
- D. user settings
- E. region
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