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Cisco 642-437 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Troubleshooting | - Troubleshooting voice and QoS issues
|
| Cisco Unified Communications Manager Express | - CUCME configuration
|
| Cisco Unified Border Element (CUBE) | - CUBE features and configuration
|
| VoIP Fundamentals | - Voice over IP basics
|
| Quality of Service (QoS) | - QoS mechanisms
|
| Voice Gateways and Call Routing | - Gateway implementation and configuration
|
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
Which Cisco voice feature can you use to connect together two Session Initiation Protocol networks?
- A. class of restriction
- B. SIP gatekeeper
- C. Cisco Unified Border Element
- D. Cisco Transcoding
Correct Answer: C 🗳️
Which digit manipulation command should be used to globally expand local 4-digit extension numbers beginning with a 4 to a full telephone number starting with 1919555 when calling outbound?
- A. num-exp 4... 19195554
- B. prefix 19195554
- C. prefix 1919555
- D. num-exp 4... 1919555
Correct Answer: A 🗳️
A TFTP server is configured with the IP address 10.10.10.150. Which command should you enter in the DHCP pool configuration mode to configure a client to use the defined TFTP server?
- A. tftp-server 10.10.10.150
- B. option 150 10.10.10.150
- C. option 150 ip 10.10.10.150
- D. tftp-server ip 10.10.10.150
Correct Answer: C 🗳️
DRAG DROP
Drag the components that make up Cisco fax relay and T.38 from the left and drop them under the appropriate category on the right.
Cisco 642-437 Exam
Correct Answer:
Explanation:
Cisco fax relay is the oldest method of supporting fax on Cisco IOS gateways and has been supported since Cisco IOS Release 11.3. Cisco fax relay uses Real-Time Transport Protocol (RTP) as the method of transport. In Cisco fax relay mode, gateways terminate T.30 fax signaling by spoofing a virtual fax machine to the locally attached fax machine. The gateways use a Cisco-proprietary fax-relay RTP-based protocol to communicate between them.
T.38 Fax Relay provides an ITU-T standards-based method and protocols for fax relay. Data is packetized and encapsulated according to the T.38 standard. The encoding of the packet headers and the mechanism to switch from VoIP mode to fax relay mode are clearly defined in the specification.
http://www.cisco.com/en/US/docs/ios/12_3/vvf_c/voice_troubleshooting/old/vts_fax.html
Which two methods are used by a Cisco gateway to transmit fax traffic across the IP network? (Choose two.)
- A. T.30 signaling
- B. modem relay
- C. fax pass-through
- D. Cisco fax relay
- E. modem pass-through
Correct Answer: C,D 🗳️
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