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Cisco 642-437 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Troubleshooting and Operations | - Voice and QoS troubleshooting methodologies - Common VoIP deployment issues |
| Topic 2: Call Admission Control and Performance | - Voice network performance considerations - Call admission control mechanisms |
| Topic 3: Signaling and Call Control | - Gateways and gatekeepers - Dial plans and call routing - SIP, H.323, and MGCP protocols |
| Topic 4: VoIP Fundamentals | - Voice traffic signaling basics - Voice over IP architecture and components - Voice codecs and compression techniques |
| Topic 5: Quality of Service (QoS) | - Queuing techniques and bandwidth management - Congestion management and avoidance - Traffic classification and marking - QoS models and mechanisms |
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
When you configure a VoIP dial peer, which command should be used to configure the remote gateway with the destination IPv4 address 172.16.1.118?
- A. session target ipv4:172.16.1.118
- B. destination ipv4:172.16.1.118
- C. destination address 172.16.1.118
- D. remote target ipv4:172.16.1.118
Correct Answer: A 🗳️
Refer to the exhibit.
An administrator is migrating a PBX telephony system to an IP Phone solution using a fixed numbering plan. The extension numbers and PSTN DIDs cannot be changed. Which of the following methods can be used in order to reach the individual extensions at Site B when called via the PSTN?
- A. The administrator needs to map the last four digits in the DID to the extension numbers and prefix a site code.
- B. The administrator needs to map the last four digits in the DID to the extension numbers using translation rules.
- C. The administrator needs to map the last four digits in the DID to the extension numbers and prefix an intersite code.
- D. No changes are necessary because PSTN calls are preceded with access code 9.
- E. The administrator can add a 1 to the DID for Site B to become 300-555-31xxx.
Correct Answer: B 🗳️
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
What is the maximum number of digits that can be assigned to a European Subscriber Number using the European Telephony Numbering Space?
- A. 17
- B. 7
- C. 10
- D. 15
Correct Answer: D 🗳️
Using Cisco best practices, on which application should you implement calling privileges?
- A. route pattern
- B. quality of service
- C. type of service
- D. class of restriction
Correct Answer: D 🗳️
What do you use an FXS for?
- A. an analog telephone
- B. a PBX
- C. an E1
- D. an IP phone
Correct Answer: A 🗳️
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