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Cisco 642-437 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Implement Gatekeeper and Cisco Unified Border Element | 12% | - Gatekeeper functions and configuration - CUBE deployment and features - Interoperability and security |
| Describe a Dial Plan | 13% | - Dial plan components and functions - Call routing and PSTN connectivity - Digit manipulation and route patterns |
| Implement Cisco Unified Communications Manager Express | 18% | - IP phone registration and provisioning - Basic call features and dial plans - CUCME setup and configuration |
| Implement Voice Gateways | 22% | - Fax and modem support - Gateway types and deployment models - Dial peers configuration - Analog and digital voice ports |
| Describe VoIP Call Legs and Signaling | 20% | - VoIP architecture and call flow - H.323, SIP, and MGCP protocols - Codec selection and media transport |
| Implement QoS for Voice Networks | 15% | - Classification, marking, and policing - Queuing mechanisms and AutoQoS - QoS principles and requirements - Call Admission Control |
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
Which four commands are used to configure VoIP dial peers? (Choose four.)
- A. prefix
- B. forward-digits
- C. port number
- D. session target
- E. dial-peer voice
- F. description
- G. codec
- H. destination-pattern
Correct Answer: D,E,G,H 🗳️
Which two functions are associated with a voice gateway? (Choose two.)
- A. acts as a Cisco Unified Border Element
- B. provides interconnection between multiple traditional telephony circuits
- C. implements filtering, address hiding, and security related functions to analog devices
- D. provides supplementary services to analog and digital endpoints
- E. provides logical access to analog and digital voice devices
Correct Answer: B,D 🗳️
Which of the Diffserv differentiated services code point per-hop behaviors is used for low-delay services including VoIP and video over IP?
- A. class selector
- B. Expedited Forwarding
- C. default
- D. Assured Forwarding
Correct Answer: B 🗳️
What is the prerequisite for configuring Cisco AutoQoS VoIP on a Cisco catalyst switch?
- A. Configure Cisco Express Forwarding.
- B. Cisco Discovery Protocol version 2.
- C. Configure correct bandwidth on all interfaces.
- D. Configure the mls qos global configuration command.
- E. Configure trust boundaries.
Correct Answer: B 🗳️
The file "apps31.9-1-1TH1-16.sbn" is located in the flash memory of the device. Which command should you enter on a Cisco IOS device to serve this file correctly using Trivial File Transfer Protocol?
- A. copy tftp flash:apps31.9-1-1TH1-16.sbn
- B. tftp-server flash:apps31.9-1-1TH1-16.sbn
- C. tftp-server apps31.9-1-1TH1-16.sbn
- D. tftp server:apps31.9-1-1TH1-16.sbn
Correct Answer: B 🗳️
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