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Cisco 642-432 Exam Syllabus Topics:

SectionObjectives
Quality of Service (QoS) for Voice- Voice traffic prioritization
  • 1. QoS marking and classification (DSCP)
    • 2. Latency, jitter, and packet loss considerations
      Cisco Unified Communications Architecture- Call processing design
      • 1. Digit manipulation and translation patterns
        • 2. Call routing logic and dial plan concepts
          - CUCM (Cisco Unified Communications Manager) fundamentals
          • 1. Device pools, regions, and locations
            • 2. System components and architecture overview
              Call Control and Survivability- SRST (Survivable Remote Site Telephony)
              • 1. SRST configuration and failover behavior
                - Redundancy and high availability
                • 1. CallManager redundancy mechanisms
                  IP Phone Deployment and Features- Endpoint registration and configuration
                  • 1. Cisco IP phone registration process
                    • 2. Device configuration templates
                      - Advanced telephony features
                      • 1. Call forwarding and hunt groups
                        • 2. Conference and transfer services
                          Voice Gateway and Protocol Integration- PSTN integration
                          • 1. Dial peers and call legs
                            • 2. Voice gateways configuration concepts
                              - VoIP signaling protocols
                              • 1. H.323 call setup and interoperability
                                • 2. SIP fundamentals

                                  Cisco Voice Over IP Sample Questions:

                                  1. Which preference key word assigns top precedence to a dial peer in a hunt-group?

                                  A) 0
                                  B) 1
                                  C) high
                                  D) priority


                                  2. What is the best description of an MGCP endpoint?

                                  A) the gatekeepers in a VoIP network
                                  B) IP phones
                                  C) the interconnection between packet and traditional telephone networks
                                  D) any analog telephony device (PBX, switch, etc.)


                                  3. Which type of signaling is DTMF?

                                  A) informational
                                  B) supervisory
                                  C) route
                                  D) address


                                  4. You are working with a potential customer that would like to integrate its existing PBX telephone system into its IP network. The accompanying figure shows that the customer has two offices that need to be connected to the IP network so that the customer can exchange telephone calls without using the PSTN. Both PBXs use a proprietary signaling type.
                                  Which signaling type will allow you to support your customer?

                                  A) CAS
                                  B) FXO
                                  C) E&M
                                  D) T-CCS
                                  E) CCS
                                  F) FXS


                                  5. What is the function of a SIP location server?

                                  A) routes service requests
                                  B) resolves active endpoint addresses
                                  C) acquires active endpoint addresses
                                  D) resolves text addresses to IP addresses


                                  Solutions:

                                  Question # 1
                                  Answer: A
                                  Question # 2
                                  Answer: C
                                  Question # 3
                                  Answer: D
                                  Question # 4
                                  Answer: D
                                  Question # 5
                                  Answer: B

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