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QUESTION 45
Besides VoIP streaming traffic, which three other traffic types must be taken into consideration for WAN circuit sizing? (Choose three.)
A. ping
B. Telnet
C. call control
D. data traffic
E. FTP
F. overhead
Correct Answer: BCF Section: (none) Explanation
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QUESTION 46
What is the default bandwidth percentage that can be managed by a Cisco IOS policy map? (Choose one.)
A. 50
B. 65
C. 75
D. 85
E. 90
Correct Answer: C Section: (none) Explanation
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QUESTION 47
LLQ is the preferred QoS methodology for Cisco Unified Communications solutions and works hand in hand with the Location CAC feature. Which two elements in the network require the addition of RSVP to this process? (Choose two.)
A. the addition of a data-only backup circuit
B. the addition of an IP-enabled backup circuit with less bandwidth
C. the addition of an IP-enabled backup circuit with more bandwidth
D. Location CAC is topology aware.
E. Location CAC is not topology aware.
F. Location CAC is only concerned about the number of calls.
Correct Answer: BE Section: (none) Explanation
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QUESTION 48
The Location CAC feature provides bandwidth control for calls within a cluster, but which one of these is required to control bandwidth usage between clusters over an IP WAN? (Choose one.)
A. gatemaster
B. gatekeeper
C. gateway
D. intercluster trunk
E. There is no mechanism for intercluster bandwidth control.
Correct Answer: B Section: (none) Explanation
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QUESTION 49
Which three are link efficiency mechanisms? (Choose three.)
A. LFI
B. LLQ
C. cRTP
D. priority queuing
E. tx ring buffer tuning
Correct Answer: ACE Section: (none) Explanation
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QUESTION 50
Which three features are core voice gateway features? (Choose three.)
A. DTMF-relay capabilities
B. LLQ capabilities
C. FAX and modem support
D. supplementary services support
E. tx ring buffer tuning capabilities
Correct Answer: ACD Section: (none) Explanation
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QUESTION 51
There are many protocols available for gateway call control in the Cisco Unified Communications environment. Which protocol is proprietary to Cisco? (Choose one.)
A. SIP
B. MGCP
C. SCCP
D. H.323
Correct Answer: C Section: (none) Explanation
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QUESTION 52
Which protocol is used for communications between Cisco Unified Communication Manager clusters? (Choose one.)
A. SIP
B. MGCP
C. SCCP
D. H.323
Correct Answer: D Section: (none) Explanation
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QUESTION 53
Which protocol provides Cisco Unified Communication Manager provisioning capabilities? (Choose one.)
A. SIP
B. MGCP
C. SCCP
D. H.323
Correct Answer: B Section: (none) Explanation
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QUESTION 54
Which protocol provides best practice for Cisco Unified Communication Manager FAX relay capability? (Choose one.)
A. T.38
B. T.37
C. G.711 pass-through
Correct Answer: A Section: (none) Explanation
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QUESTION 55
When calculating the sizing of a TDM gateway, which three pieces of information are required? (Choose three.)
A. incoming BHCA traffic in erlangs
B. average number of circuits busy on a daily basis
C. blocking factor (grade of service)
D. outgoing BHCA traffic in erlangs
E. average number of idle circuits on the busiest day
Correct Answer: ACD Section: (none) Explanation
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QUESTION 56
Which two gateway services can be provided using DSPs? (Choose two.)
A. conferencing
B. music on hold
C. call transfer
D. automatic call rerouting
E. voice circuit termination
Correct Answer: AE Section: (none) Explanation
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QUESTION 57
What is the major functional difference between PVDM2 and PVDM3 technology? (Choose one.)
A. PVDM2 has 16 channels; PVDM3 has 64 channels.
B. Each PVDM2 can process multiple functions.
C. Conferencing requires a reserved PVDM2 chip.
D. PVDM3s can process multiple functions on the same chip.
E. There is no functional difference between the two chipsets.
Correct Answer: D Section: (none) Explanation
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QUESTION 58
What is the primary reason that DSP resources are added to remote offices in a centralized Cisco Unified Communications Manager solution? (Choose one.)
A. to make sure there is an alternate TDM path to the cluster
B. to provide supplementary services to the MGCP gateway
C. to provide local media resources
D. to enhance voice quality
Correct Answer: C Section: (none) Explanation
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Free practice questions for Cisco 642-416 exam.These questions are aimed at giving you an idea of the type of questions you can expect on the actual exam.You will get an idea of the level of knowledge each topic goes into but because these are simple web pages you will not see the interactive and performance based questions – those are available in the Cisco 642-416.