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Cisco 642-437 Questions & Answers - in .pdf

642-437 pdf
  • Total Q&A: 257
  • Update: Aug 22, 2026
  • Price: $59.99
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  • Vendor: Cisco
  • Exam Code: 642-437
  • Exam Name: Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)
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Cisco 642-437 Q&A - Testing Engine

642-437 Study Guide
  • Total Q&A: 257
  • Update: Aug 22, 2026
  • Price: $59.99
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  • Vendor: Cisco
  • Exam Code: 642-437
  • Exam Name: Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)
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Cisco 642-437 Exam Overview:

Certification Vendor:Cisco
Exam Name:Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)
Exam Number:642-437
Certificate Validity Period:Cisco certificate validity was aligned to CCNP lifecycle — historically ~3 years (exam retired, so no current validity)
Passing Score:Not publicly disclosed (Cisco typically reports pass/fail only)
Real Exam Qty:Approximately 250–270
Exam Format:Multiple Choice, Multiple Answer, Drag and Drop, Simulation/Scenario-based
Exam Price:USD 250 (typical Cisco exam fee)
Exam Duration:120 minutes
Related Certifications:Cisco Certified Network Professional Voice (CCNP Voice)
Available Languages:English
Sample Questions:Cisco 642-437 Sample Questions
Exam Way:Historically delivered at Pearson VUE testing centers; exam has been retired and is no longer available
Pre Condition:Valid CCNA-level knowledge recommended (no strict prerequisite), familiarity with voice fundamentals and Cisco IOS configurations
Official Syllabus URL:https://www.cisco.com/site/us/en/learn/training-certifications/exams/retired.html

Cisco 642-437 Exam Syllabus Topics:

SectionObjectives
Voice Gateways and Call Routing- Gateway implementation and configuration
  • 1. Voice gateway interfaces and DSPs
    • 2. Dial peers and dial plan implementation
      Cisco Unified Communications Manager Express- CUCME configuration
      • 1. Endpoint addressing and ephone setup
        • 2. Call handling and features
          Quality of Service (QoS)- QoS mechanisms
          • 1. DiffServ and classification
            • 2. AutoQoS and queuing
              Cisco Unified Border Element (CUBE)- CUBE features and configuration
              • 1. SIP trunks and interworking
                • 2. Media flow and protocol interworking
                  Troubleshooting- Troubleshooting voice and QoS issues
                  • 1. Diagnostics and show/debug commands
                    • 2. Common voice call issues
                      VoIP Fundamentals- Voice over IP basics
                      • 1. Voice signaling protocols (H.323, SIP)
                        • 2. VoIP components and operation

                          Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:

                          1. Which option is used within a dial plan to define the destination that a user is allowed to call?

                          A) dial peers
                          B) calling peers
                          C) destination patterns
                          D) calling privileges


                          2. Which codec is considered to have high complexity that limits the number of active voice channels on a gateway?

                          A) G.729AB
                          B) G.729
                          C) G.726
                          D) G.722


                          3. How many rules does a voice translation profile allow?

                          A) up to 12
                          B) up to 15
                          C) up to 8
                          D) up to 25


                          4. A TFTP server is configured with the IP address 10.10.10.150. Which command should you enter in the DHCP pool configuration mode to configure a client to use the defined TFTP server?

                          A) tftp-server 10.10.10.150
                          B) tftp-server ip 10.10.10.150
                          C) option 150 ip 10.10.10.150
                          D) option 150 10.10.10.150


                          5. Which calling privileges command can be used to assign a specific configuring class of restriction list named "restrict" incoming on a dial peer?

                          A) corlist incoming restrict
                          B) COR list restrict inbound
                          C) corlist restrict
                          D) cor assign restrict


                          Solutions:

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

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