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Cisco 642-437 Exam Syllabus Topics:

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

1. You are configuring a network to support voice to the PSTN. One important aspect to the configuration is to be able to determine the individual slot, subunit, and port number from the gateway endpoint identifier. Which signaling protocol is appropriate for this situation?

A) H.323
B) SCCP
C) MGCP
D) SIP

2. Which type of analog voice port would be used on a telephony device to connect to a telephone or fax machine?

A) ear and mouth
B) T1
C) Foreign Exchange Office
D) Foreign Exchange Station

3. How does Packet Loss Concealment improve voice quality?

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

4. What is the maximum percentage of packet loss that can be accepted on VoIP traffic?

A) 0
B) less than 5%
C) less than 1%
D) less than 2%

5. 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) destination ipv4:172.16.1.118
B) session target ipv4:172.16.1.118
C) remote target ipv4:172.16.1.118
D) destination address 172.16.1.118

Solutions: