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Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) : 642-437

642-437

Exam Code: 642-437

Exam Name: Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)

Updated: Jun 03, 2026

Q&A Number: 257 Q&As

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Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:

1. What should you use to configure endpoint addressing if you are using Cisco Unified Communications Manager Express with SRST?

A) VoIP
B) dial-peer
C) POTS
D) ephone-dn


2. When marking traffic for Expedited Forwarding, how does a device that is not capable of recognizing DSCP interpret the EF binary string 101110?

A) The first device in the network that does not recognize DSCP will use 110 as the CoS value and will replace the DSCP value with a CoS of 6 and forward the packet.
B) The device that cannot recognize DSCP will use best effort to forward the packet.
C) The device that does not recognize DSCP will use 110 as the CoS value and forward the packet with a CoS of 6.
D) The devices in the network that do not recognize DSCP will use the three high-order DSCP bits as the CoS setting, resulting in a CoS value of 5.


3. In a voice gateway, the configured codec complexity of the DSPs on a voice card can be changed. What is the impact on the DSPs if high codec complexity is configured?

A) Lower codec complexity supports the fewest number of voice channels, provided that the lower complexity is compatible with the particular codecs that are in use.
B) With higher codec complexity, more calls can be processed.
C) The DSP will process codecs that support high complexity transparently and shift to flex mode for those codecs that are not high complexity.
D) The codec complexity affects call density, which is the number of calls that are reconciled on the DSPs. This results in lower call density when high complexity is configured.


4. Which type of voice port supports Dialed Number Identification Service signaling for outbound calls, and inbound calls carry only ANI?

A) E&M
B) FXS
C) FXO
D) FXS-DID


5. DRAG DROP
Drag the appropriate IOS commands from the left and drop them in the spaces on the right to create a dial peer that will match all inbound calls and prevent two-stage dialing on a T1 PRI circuit. Not all boxes are used and not all options are used.


Solutions:

Question # 1
Answer: D
Question # 2
Answer: D
Question # 3
Answer: D
Question # 4
Answer: C
Question # 5
Answer: Only visible for members

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