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Cisco 642-457 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Mobility Features | 15% | - Mobility features verification - Extension Mobility implementation - Device Mobility configuration |
| Bandwidth Management & Call Admission Control | 20% | - Gatekeeper-based CAC - RSVP agents and SIP precondition - Automated Alternate Routing (AAR) - Media resources: MTP, transcoders, conferencing, MOH - Regions and locations configuration |
| Call Survivability & Redundancy | 20% | - Centralized call processing redundancy - MGCP fallback configuration - Failover and fallback verification - SRST and CUCM Express survivability |
| Multisite CUCM Infrastructure & Trunks | 20% | - SAF Forwarder and SAF CCD implementation - Configure intercluster trunks and call control discovery - Multisite architecture and connectivity options - Implement H.323, MGCP, and SIP gateways |
| Multisite Dial Plan Implementation | 25% | - Local Route Groups and global transformations - Globalized call routing and E.164 dialing - Partition, CSS, and numbering plan design - Tail-End Hop-Off (TEHO) and PSTN backup |
Cisco Implementing Cisco Unified Communications Manager, Part 2 v8.0 (CIPT2 v8.0) Sample Questions:
1. How is a SIP trunk in Cisco Unified Communications Manager configured for SIP precondition?
A) The configuration is done by selecting a SIP precondition trunk for trunk type.
B) SIP precondition is configured by configuring a new SIP profile and selecting E2E for RSVP over SIP. The new SIP profile must then be assigned to the SIP trunk.
C) SIP precondition is configured by selecting E2E for RSVP over SIP on the default SIP profile assigned to the SIP trunk.
D) The configuration is automatically selected when RSVP is enabled for the location assigned to the trunk.
2. Refer to the exhibit.
HQ_MRGL is assigned to the HQ IP phones. BR_MRGL is assigned to the BR IP phones. The remote site BR IP phones support only the G.711 codec. Where should the transcoder reside?
A) The transcoder should reside at the BR site and assigned to BR_MRG.
B) The transcoder should reside at the HQ site and assigned to HQ_MRG.
C) The transcoder should be assigned to its own MRG, which should then be assigned to the default device pool.
D) A transcoder is not needed. The HQ phones will automatically change over to the G.711 codec.
3. When an incoming PSTN call arrives at an H.323 gateway, how does the called number get normalized to an internal directory number in Cisco Unified Communications Manager?
A) Normalization is done using route patterns.
B) Normalization is done using the gateway incoming calling party prefixes based on number type.
C) Normalization is achieved by local route group that is assigned to the H.323 gateway.
D) Normalization is done by configuring the significant digits for inbound calls on the H.323 gateway configuration in Cisco Unified Communications Manager.
4. Refer to the exhibit.
To permit three G.729 calls, what should the bandwidth value be for the ip rsvp bandwidth command?
A) 32
B) 48
C) 64
D) 88
E) 128
5. While configuring Call Survivability in Cisco Unified Communications Manager, what step is mandatory to reach remote sites while in SRST mode?
A) Enable the Failover Service parameter.
B) Enable Cisco Remote Site Reachability.
C) Configure CFUR.
D) Enable the SRST checkbox in the MGCP gateway.
E) Configure the H.323 gateway for SRST in Cisco Unified Communications Manager.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: D | Question # 5 Answer: C |
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