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

1. Which component in the Media Gateway Control Protocol environment is responsible for controlling the operation of the gateways?

A) gate master
B) gatekeeper
C) calling authority
D) call agent

2. 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.

3. What is the total number of differentiated services code point bits in the DiffServ field?

A) 2
B) 6
C) 8
D) 4

4. How does Packet Loss Concealment improve voice quality?

A) Packet Loss Concealment will compensate for packet loss rates between 1 and 5 percent by generating a reasonable replacement packet to improve the voice quality.
B) Packet Loss Concealment intelligently analyzes missing packets and generates a reasonable replacement packet to improve the voice quality.
C) Packet Loss Concealment will buffer 20 to 50 ms of a voice stream to minimize lost or out-oforder voice packets.
D) Cisco Packet Loss Concealment technology decreases the voice sampling rate to 10 ms of the voice payload to smooth gaps in the voice stream.

5. Which four Cisco IOS commands are required to configure a DHCP server on a voice gateway to support a voice subnet so that both IP addresses and the IP address of the TFTP server are provided? The voice subnet has an address of 10.1.130.0/24, the default gateway is 10.1.130.1/24, and the TFTP server is located at 10.1.5.2. (Choose four.)

A) default-gw 10.1.130.1
B) default-router 10.1.130.1
C) dhcp pool voice
D) option 150 10.1.5.2
E) network 10.1.130.0 255.255.255.0
F) option 150 ip 10.1.5.2
G) subnet 10.1.130.1/24
H) ip dhcp pool voice

Solutions: