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Cisco 642-457 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| CUCM Architecture and Deployment | - Cluster design and redundancy concepts - Cisco Unified Communications Manager components |
| Troubleshooting and Maintenance | - Call flow analysis and trace tools - CUCM serviceability tools |
| Dial Plan Implementation | - Calling search spaces and partitions - Route patterns and translation patterns |
| Call Routing and Gateway Integration | - SIP and H.323 trunk configuration - PSTN connectivity and gateways |
| Advanced CUCM Features | - Device pools and regions - Extension Mobility - Call pickup and hunt groups |
| Media Resources and Services | - Conferencing and transcoding resources - MOH and MTP configuration |
Cisco Implementing Cisco Unified Communications Manager, Part 2 v8.0 (CIPT2 v8.0) Sample Questions:
1. Which method can be used to address variable-length dial plans?
A) Use the @macro on the route pattern
B) Use MGCP gateways, which support variable-length dial plans
C) Use nested translation patterns to eliminate inter-digit timeout
D) Overlap sending and receiving.
E) Add a prefix for all calls that are longer than 10-digits long
2. Which two statements about international multisite dial plans are true? (Choose two.)
A) TEHO is legal in all countries.
B) TEHO is legal in most countries, but illegal in others.
C) TEHO utilizes WAN links.
D) TEHO reduces WAN utilization.
3. Which option configures the secondary dial tone option for SRST mode to let the users hear the dial tone for PSTN calls?
A) call-manager-fallback secondary dialtone 0
B) voice service voip secondary dialtone 0
C) dial-peer voice 1 pots secondary dialtone 0
D) ccm-manager secondary dialtone 0
4. Refer to the following exhibit.
Which Cisco IOS SAF Forwarder configuration is correct?
A) Exhibit C
B) Exhibit B
C) Exhibit D
D) Exhibit A
5. What is a prerequisite of AAR deployment?
A) You must have a single distributed call processing deployment.
B) You must have a centralized call processing deployment.
C) Clustering must be implemented over the WAN.
D) Calls must be automatically rerouted through the PSTN or other networks when Cisco Unified Communications Manager blocks a call due to insufficient location bandwidth.
E) Calls must be manually rerouted through the PSTN or other networks when Cisco Unified Communications Manager blocks a call due to insufficient location bandwidth.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: B,C | Question # 3 Answer: A | Question # 4 Answer: D | Question # 5 Answer: B |





