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Cisco 642-457 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Call Survivability & Redundancy | 20% | - Centralized call processing redundancy - MGCP fallback configuration - Failover and fallback verification - SRST and CUCM Express survivability |
| Topic 2: Bandwidth Management & Call Admission Control | 20% | - Regions and locations configuration - Media resources: MTP, transcoders, conferencing, MOH - Gatekeeper-based CAC - RSVP agents and SIP precondition - Automated Alternate Routing (AAR) |
| Topic 3: Multisite CUCM Infrastructure & Trunks | 20% | - Multisite architecture and connectivity options - Implement H.323, MGCP, and SIP gateways - SAF Forwarder and SAF CCD implementation - Configure intercluster trunks and call control discovery |
| Topic 4: Multisite Dial Plan Implementation | 25% | - Local Route Groups and global transformations - Partition, CSS, and numbering plan design - Globalized call routing and E.164 dialing - Tail-End Hop-Off (TEHO) and PSTN backup |
| Topic 5: Mobility Features | 15% | - Device Mobility configuration - Extension Mobility implementation - Mobility features verification |
Cisco Implementing Cisco Unified Communications Manager, Part 2 v8.0 (CIPT2 v8.0) Sample Questions:
1. Refer to the exhibit.
Which CSS is used at the HQ Cisco Unified Communications Manager to reroute calls via the PSTN when the SAF network is unavailable?
A) the phone device CSS
B) the phone line/device combined CSS
C) the phone line CSS
D) the SAF CSS configured on the CCD requesting service
E) No special CSS is required. If SAF patterns are accessible, the PSTN reroute is automatic.
F) the phone AAR CSS configured at the phone device
2. Refer to the exhibit.
The Cisco Unified Communications Manager at HQ has been configured for end-to-end RSVP. The Cisco Unified Communications Manager at BR has been configured for local RSVP.
RSVP between the locations assigned to the IP phones and SIP trunks at each site are configured with mandatory RSVP. When a call is placed from the IP phone at the BR site to the IP phone at the HQ site, which statement is true?
A) RSVP end-to-end will occur.
B) The Cisco Unified Communications Manager at BR will fall back to local RSVP and place the call. No RSVP end-to-end will occur.
C) The call will fail.
D) The call will proceed as a normal call with no RSVP reservation.
E) The Cisco Unified Communications Manager at BR will use local RSVP. The HQ Cisco Unified Communications Manager will use end-to-end RSVP.
3. A Cisco 3825 needs to be added in Cisco Unified Communications Manager as an H.323 gateway. What should the gateway type be?
A) H.323 gateway
B) The gateway can be added either as an H.323 gateway or Cisco 3800 series router.
C) The gateway can be added either as an H.323 gateway or Cisco 3825 series router.
D) Cisco 3825
E) Cisco 3800 series router. The specific model will be selected after the Cisco 3800 is selected.
4. What happens if location-based CAC is used and there is no bandwidth available when a remote caller is placed on hold?
A) Cisco Unified Communications Manager sends TOH rather than MOH.
B) Cisco Unified Communications Manager terminates the call.
C) Cisco Unified Communications Manager attempts to reconnect the call immediately.
D) Cisco Unified Communications Manager plays default MOH.
5. 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 HQ site and assigned to HQ_MRG.
B) The transcoder should reside at the BR site and assigned to BR_MRG.
C) A transcoder is not needed. The HQ phones will automatically change over to the G.711 codec.
D) The transcoder should be assigned to its own MRG, which should then be assigned to the default device pool.
Solutions:
| Question # 1 Answer: F | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: A | Question # 5 Answer: B |
