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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:

Question 1

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

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

Question 2

Which QoS technology provides a strict priority queuing scheme that allows delay-sensitive data such as voice to be dequeued and sent before packets in other queues are dequeued, and also works with WFQ and CBWFQ.

A. FRF.12
B. header compression
C. low latency queuing
D. IP RTP Priority and Frame Relay IP RTP Priority
E. RSVP

Question 3

Which process does a voice gateway use to determine how to route an outbound call?

A. The voice gateway uses the calling number to match the destination pattern of the outbound dial peers using the longest-match rule.
B. The voice gateway uses the first-match rule to match the calling number to the destination pattern of the outbound POTS and VoIP dial peers.
C. The voice gateway uses the longest-match rule to match the called number to the destination pattern to the outbound POTS or VoIP dial peers.
D. The voice gateway uses the called number to match the destination pattern of outbound dial peers using the first-match rule.

Question 4

What is the difference between medium and high complexity codecs?

A. Medium complexity codecs were used prior to Cisco 2800 and 3800 Series routers, whereas high complexity codecs are used in Cisco 2800 and 3800 Series and newer routers.
B. With higher codec complexity, more calls can be processed.
C. The DSP processes codecs that only support high complexity transparently.
D. The difference is the number of voice channels that can be supported by a single DSP.

Question 5

Which four are benefits of VLANs in an organization? (Choose four.)

A. better VLAN database
B. quick response to ping times
C. physical topology independence
D. better LAN infrastructure
E. increased performance
F. increased security
G. switch is able to reboot faster
H. improved manageability

Solutions: