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Cisco 642-437 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: VoIP Fundamentals | - Voice codecs and compression techniques - Voice over IP architecture and components - Voice traffic signaling basics |
| Topic 2: Signaling and Call Control | - Dial plans and call routing - SIP, H.323, and MGCP protocols - Gateways and gatekeepers |
| Topic 3: Call Admission Control and Performance | - Voice network performance considerations - Call admission control mechanisms |
| Topic 4: Troubleshooting and Operations | - Common VoIP deployment issues - Voice and QoS troubleshooting methodologies |
| Topic 5: Quality of Service (QoS) | - Queuing techniques and bandwidth management - Traffic classification and marking - Congestion management and avoidance - QoS models and mechanisms |
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
Which statement about the DiffServ model is true?
- A. DiffServ specifies a mechanism for classifying and managing network traffic and providing QoS on modern IP networks.
- B. DiffServ is a way to provide the assurance of sufficiently low delay and packet loss for certain types of applications or traffic.
- C. DiffServ is based on building a virtual circuit in the Internet using the bandwidth reservation technique.
- D. DiffServ provides traffic management using QoS classifications.
Correct Answer: A 🗳️
Which type of ephone-dn can be used to support one virtual voice port with support for two channels?
- A. single-line
- B. dual-line
- C. dual-channel
- D. dual-voice-channel
Correct Answer: B 🗳️
Which command is used to view the COR list?
- A. show voip ccapi inout
- B. show dial-peer cor
- C. show dial-peer summary
- D. show ip interface brief
Correct Answer: B 🗳️
Which trunking protocol is the most appropriate choice for interconnecting a VoIP network with an ITSP?
- A. MGCP
- B. SIP
- C. H.323
- D. SCCP
Correct Answer: B 🗳️
Which four types of ephone-dns are supported by SCCP in Cisco Unified Communications Manager Express? (Choose four.)
- A. two directory numbers with one telephone number
- B. single-line
- C. dual-number
- D. dual-line
- E. shared-line, nonexclusive
- F. octo-line
Correct Answer: B,C,D,F 🗳️
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