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Cisco 642-437 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Quality of Service (QoS) | - QoS mechanisms
|
| Voice Gateways and Call Routing | - Gateway implementation and configuration
|
| Cisco Unified Border Element (CUBE) | - CUBE features and configuration
|
| Cisco Unified Communications Manager Express | - CUCME configuration
|
| Troubleshooting | - Troubleshooting voice and QoS issues
|
| VoIP Fundamentals | - Voice over IP basics
|
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
Which of the Diffserv differentiated services code point per-hop behaviors is used for low-delay services including VoIP and video over IP?
- A. Expedited Forwarding
- B. class selector
- C. default
- D. Assured Forwarding
Correct Answer: A 🗳️
Refer to the exhibit.
What will the class map do if a packet arrives that is marked with a CoS of 6 and a DSCP value of EF?
- A. The class map will match the packet and forward it to the policy map to be marked.
- B. The class map will not map the packet and no QoS will be applied
- C. The class map will wait for the next packet in the stream to see if it has a CoS marking of 5 and then forward both packets to the policy map.
- D. For the packet to be forwarded to the policy map, it must have either a CoS of 5 or a DSCP value of EF.
Correct Answer: B 🗳️
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Which two protocols are peer-to-peer protocols? (Choose two.)
- A. H.323
- B. SCCP
- C. MGCP
- D. SIP
Correct Answer: A,D 🗳️
Which command is used to assign 20% of the bandwidth of an interface to a traffic class with priority?
- A. router(config-cmap)#priority percent 20
- B. router(config-pmap-c)#bandwidth percent 20
- C. router(config-pmap-c)#priority percent 20
- D. router(config-cmap)#bandwidth percent 20
Correct Answer: C 🗳️
What is the Cisco-recommended network requirement for voice and video?
- A. Cisco AutoQoS
- B. packet loss of 1 percent or less
- C. over 3.0 megabytes circuit
- D. -6 on gateway attenuation
Correct Answer: B 🗳️
Clark -
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