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Cisco 642-437 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| VoIP Fundamentals | - Voice traffic signaling basics - Voice codecs and compression techniques - Voice over IP architecture and components |
| Call Admission Control and Performance | - Call admission control mechanisms - Voice network performance considerations |
| Signaling and Call Control | - Gateways and gatekeepers - Dial plans and call routing - SIP, H.323, and MGCP protocols |
| Quality of Service (QoS) | - QoS models and mechanisms - Traffic classification and marking - Queuing techniques and bandwidth management - Congestion management and avoidance |
| Troubleshooting and Operations | - Common VoIP deployment issues - Voice and QoS troubleshooting methodologies |
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
1. Which three are primary applications for classifying data on the network using QoS? (Choose three.)
A) mission-critical applications
B) best-effort applications
C) database applications
D) transactional applications
E) World Wide Web applications
F) any applications
2. What is the maximum amount of one-way delay that is considered acceptable per G.114 for a voice call with little or no concern for quality issues?
A) 500 ms
B) 200 ms
C) 150 ms
D) 1 sec
3. DRAG DROP
Drag the appropriate IOS commands from the left and drop them in the spaces on the right in order to configure the dial peers for the Cisco Unified Border Element. The IP WAN connection between the two Cisco Unified Border Elements uses SIP. Not all commands and spaces are used.
Cisco 642-437 Exam
4. Which feature can be used to avoid traffic congestion by dropping low-priority packets rather than dropping high-priority packets and is not recommended for voice networks?
A) class-based weighted fair queuing
B) low latency queuing
C) weighted random early detection
D) tail-drop
5. What is the total bandwidth per call in a link, if you use a G.729 (high-complexity codec) with a 40byte sample and Frame Relay with cRTP?
A) 7,420
B) 9,600
C) 11,200
D) 19,200
Solutions:
| Question # 1 Answer: A,B,D | Question # 2 Answer: C | Question # 3 Answer: Only visible for members | Question # 4 Answer: C | Question # 5 Answer: B |
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