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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. What are the three appropriate DSCP-to-CoS map statements that will assign AF31 and AF32 a CoS of 3, and AF42 a CoS of 4? (Choose three.)

A) mls qos map dscp-cos 36 to 4
B) mls qos map dscp-cos 28 to 3
C) mls qos map dscp-cos 0 8 16 26 34 46 48 56
D) mls qos map dscp-cos 0 8 18 af31 34 46 48 56
E) mls qos map dscp-cos af31 to 3
F) mls qos map dscp-cos 32 to 3

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

3. What are the PHBs that DiffServ use?

A) default, AF, EF, and CS PHBs
B) resource reservation and admission control
C) AF and EF PHBs
D) default, AF, and EF PHBs
E) AF, EF, and CS PHBs

4. Which command correctly enables a trust of the existing differentiated services code point value coming into a switch?

A) switch(config-if)#mls qos trust dscp
B) switch(config-if)#mls dscp trust
C) switch(config-mls)#dscp trust
D) switch(config-mls)#mls qos trust dscp

5. Which codec is the best option when a voice bandwidth of 8kbps or below is required with the highest voice quality?

A) G.728
B) G.726
C) G.711
D) G.729

Solutions: