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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. 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

2. 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.

3. Which two protocols are peer-to-peer protocols? (Choose two.)

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

4. 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

5. 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

Solutions: