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Cisco 642-437 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Implement Gatekeeper and Cisco Unified Border Element | 12% | - Gatekeeper functions and configuration - CUBE deployment and features - Interoperability and security |
| Topic 2: Implement QoS for Voice Networks | 15% | - QoS principles and requirements - Call Admission Control - Classification, marking, and policing - Queuing mechanisms and AutoQoS |
| Topic 3: Describe VoIP Call Legs and Signaling | 20% | - H.323, SIP, and MGCP protocols - Codec selection and media transport - VoIP architecture and call flow |
| Topic 4: Describe a Dial Plan | 13% | - Call routing and PSTN connectivity - Digit manipulation and route patterns - Dial plan components and functions |
| Topic 5: Implement Cisco Unified Communications Manager Express | 18% | - Basic call features and dial plans - IP phone registration and provisioning - CUCME setup and configuration |
| Topic 6: Implement Voice Gateways | 22% | - Fax and modem support - Analog and digital voice ports - Gateway types and deployment models - Dial peers configuration |
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
1. Which three commands are used to configure a T1 CAS interface? (Choose three.)
A) framing
B) show frame pvc
C) dial-peer voice
D) ds0-group 1 timeslots
E) linecode
F) show run int s0/0
2. 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) remote target ipv4:172.16.1.118
D) destination address 172.16.1.118
3. How are firmware images implemented and which file type describes the contents of the firmware image?
A) Firmware images are implemented as a file loader group and are described by a file that ends with a .sbn suffix.
B) Firmware images are implanted as firmware groups that are described by a file that has a .cnf suffix.
C) Firmware images are implemented as individual files that are described by a file that has a .loads suffix.
D) Firmware images are implemented as file bundles that are described by a file that ends with a .loads suffix.
4. What is the prerequisite for configuring Cisco AutoQoS VoIP on a Cisco catalyst switch?
A) Configure correct bandwidth on all interfaces.
B) Configure the mls qos global configuration command.
C) Cisco Discovery Protocol version 2.
D) Configure Cisco Express Forwarding.
E) Configure trust boundaries.
5. What is the difference between medium and high complexity codecs?
A) Medium complexity codecs were used prior to Cisco 2800 and 3800 Series routers, whereas high complexity codecs are used in Cisco 2800 and 3800 Series and newer routers.
B) With higher codec complexity, more calls can be processed.
C) The DSP processes codecs that only support high complexity transparently.
D) The difference is the number of voice channels that can be supported by a single DSP.
Solutions:
| Question # 1 Answer: A,D,E | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: D |
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