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多选题
Which three statements are true about load-based Call Admission Control?（）
A
grants a VoWLAN client-initiated call based on the number of active clients associated to the accesspoint
B
grants a VoWLAN client-initiated call based on channel bandwidth capacity
C
uses the 802.11i specification
D
uses 802.11 action frames
E
requires a WMM-enabled client
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更多 “多选题Which three statements are true about load-based Call Admission Control?（）Agrants a VoWLAN client-initiated call based on the number of active clients associated to the accesspointBgrants a VoWLAN client-initiated call based on channel bandwidth capacityCuses the 802.11i specificationDuses 802.11 action framesErequires a WMM-enabled client” 相关考题
考题
Which IP telephony deployment model uses an H.225 Gatekeeper－Controlled trunk for call admission control within existing H.323 environments?()
A. single site with centralized call processingB. single site with distributed call processingC. multisite with centralized call processingD. multisite with distributed call processing
考题
What type of Call Admission control in CallManager allows for limits to the bandwidth consumed by active calls?()
A. regionsB. partitionsC. locationsD. device Pools
考题
Which statement is true about a distributed call control environment and the processing of dialed digits from an IP phone？（）A、The router that is directly connected to the IP phone will look up the called number in its call routing table.B、The router that is directly connected to the IP phone will inform its call agent when a service request is detected.C、When the IP phone is picked up，the IP phone initiates the service request.D、The directly connected router passes the collected digits to its call agent，and the call agent looks up in its call-routing table the called number.
考题
Which two statements are correct about the signaling methods that are utilized for transmitting voice？ （）A、 Channel-associated signaling transmits control signals in band and therefore reduces the bandwidth available for the voice data stream.B、 Channel-associated signaling utilizes a separate TDM channel for transmitting control signals.C、 Common channel signaling transmits control signals in band and therefore reduces the bandwidth available for the voice data stream.D、 Common channel signaling uses one of the TDM channels to transmit control information reducing the number of channels available for voice.E、 ISDN BRIs implement channel-associated signaling.
考题
What can be used to maintain the voice quality on a link by limiting the number of calls that can be active at any given time？（）A、 Call Management Link AgentB、 Traffic policingC、 Call Admission ControlD、 QoS Link Congestion ManagementE、 Oversubscription Link Detection
考题
What type of Call Admission control in CallManager allows for limits to the bandwidth consumed by active calls？（）A、 regionsB、 partitionsC、 locationsD、 device Pools
考题
Which two statements are true about CAC？（）A、CAC is implemented in the call setup phase to allocate bandwidth resourcesB、CAC is implemented in the call maintenance phase to allocate bandwidth resourcesC、CAC is utilized during the call teardown phase to ensure that all resources have been releasedD、CAC uses the Cisco RSVP （Resource Reservation Protocol） Agent to integrate call-processing capabilities with the underlying network infrastructureE、CAC is implemented in the call setup phase to determine the destination of the call
考题
Which three statements are true about load-based Call Admission Control?（）A、grants a VoWLAN client-initiated call based on the number of active clients associated to the accesspointB、grants a VoWLAN client-initiated call based on channel bandwidth capacityC、uses the 802.11i specificationD、uses 802.11 action framesE、requires a WMM-enabled client
考题
Which two are functions of an IP voice gateway?（）A、provide far-end call control B、provide far-end camera control C、translate analog voice to packetized voice D、transition call path between different networks E、provide locations-based call admission control
考题
Which statement is true about the Call Admission Control （CAC） feature in VoIP networks？（）A、 CAC is used to allocate enough bandwidth for the number of calls that are allowed on the VoIP network.B、 CAC is used to protect the quality of the voice calls by preventing call establishment if enough resources are not available on the network.C、 CAC provides queuing mechanisms for voice calls if the packets exceed the configured or budgeted rate.D、 In a VoIP network the CAC can be replaced with the LLQ QoS mechanism if it has been properly implemented.
考题
Which IOS feature provides dial plan scalability and bandwidth management for H.323 VoIP implementations？（）A、gatekeeperB、Call RoutingC、Call Admission ControlD、Digital Signal Processors
考题
Which statement is true about the distributed call control in a VoIP network？（）A、the VoIP endpoints have the intelligence to set up and control callsB、Call setup and control functionality is centralized in one call agent or clusterC、Call setup and control resides in call agents that are distributed throughout the networkD、Each VoIP device has separate call control， voice packetization， and transport mechanisms
考题
What is the Cisco recommended setting for the Cisco Unified Wireless Network WLC Voice Call Admission Control Max RF Bandwidth to support the Cisco Unified Wireless IP Phone 7921G?（）A、nominally 30 percent to best align with Cisco Unified Communications System recommendationsB、100 percent to ensure that the VoWLAN calls can use all the available bandwidth, if neededC、system default of 75 percentD、40 to 60 percentE、voice CAC should be left disabled unless wired QoS is configured
考题
In a Teleworker deployment with a single IP phone connected to a Cisco 831 router, select the true statement regarding Call Admission Control.（）A、RSVP is a required configuration to support conference calls without voice packet loss. B、The QoS configuration on the 831 router must always provision sufficient bandwidth for two RTP streams. C、Call admission control is an issue only when using hardware DSP resources. D、When using the conference call features on a 7960 IP phone, only one RTP stream is present regardless of how many extensions are on the conference.
考题
In a VoIP network， which three call signaling protocols are supported by the Cisco CallManager for call setup， call maintenance， and call teardown？ （）A、 H·323B、 UDPC、 RTPD、 TCPE、 Media Gateway Control Protocol （MGCP）F、 session initiation protocol （SIP）
考题
Which IP telephony deployment model uses an H.225 Gatekeeper-Controlled trunk for call admission control within existing H.323 environments?（）A、single site with centralized call processingB、single site with distributed call processingC、multisite with centralized call processingD、multisite with distributed call processing
考题
When conducting a wireless voice site survey， which two sizing considerations exist for thecoverage cell？（）A、rogue access point detection in the coverage areaB、multipath issues in the coverage areaC、number of VoWLAN users in the coverage cellD、call capacity requirements of the coverage area
考题
单选题What is the Cisco recommended setting for the Cisco Unified Wireless Network WLC Voice Call Admission Control Max RF Bandwidth to support the Cisco Unified Wireless IP Phone 7921G?（）A
nominally 30 percent to best align with Cisco Unified Communications System recommendationsB
100 percent to ensure that the VoWLAN calls can use all the available bandwidth, if neededC
system default of 75 percentD
40 to 60 percentE
voice CAC should be left disabled unless wired QoS is configured
考题
多选题Which three statements are true about load-based Call Admission Control?（）Agrants a VoWLAN client-initiated call based on the number of active clients associated to the accesspointBgrants a VoWLAN client-initiated call based on channel bandwidth capacityCuses the 802.11i specificationDuses 802.11 action framesErequires a WMM-enabled client
考题
多选题Which two are functions of an IP voice gateway?（）Aprovide far-end call controlBprovide far-end camera controlCtranslate analog voice to packetized voiceDtransition call path between different networksEprovide locations-based call admission control
考题
多选题What are two reasons to implement H·323 gatekeepers？（）Ato eliminate the need for VoIP gatewaysBto scale a VoIP installation with multiple gatewaysCto provide call admission control and limit the number of simultaneous calls on the networkDto meet the requirement to control H·323 gateways on a LANEto accept call requests and reduce the load on the gateway
考题
多选题Which two statements are true about CAC？（）ACAC is implemented in the call setup phase to allocate bandwidth resourcesBCAC is implemented in the call maintenance phase to allocate bandwidth resourcesCCAC is utilized during the call teardown phase to ensure that all resources have been releasedDCAC uses the Cisco RSVP （Resource Reservation Protocol） Agent to integrate call-processing capabilities with the underlying network infrastructureECAC is implemented in the call setup phase to determine the destination of the call
考题
单选题Which statement is true about the distributed call control in a VoIP network？（）A
the VoIP endpoints have the intelligence to set up and control callsB
Call setup and control functionality is centralized in one call agent or clusterC
Call setup and control resides in call agents that are distributed throughout the networkD
Each VoIP device has separate call control， voice packetization， and transport mechanisms
考题
多选题In a VoIP network， which three call signaling protocols are supported by the Cisco CallManager for call setup， call maintenance， and call teardown？ （）AH·323BUDPCRTPDTCPEMedia Gateway Control Protocol （MGCP）Fsession initiation protocol （SIP）
考题
单选题Which statement is true about a distributed call control environment and the processing of dialed digits from an IP phone？（）A
The router that is directly connected to the IP phone will look up the called number in its call routing table.B
The router that is directly connected to the IP phone will inform its call agent when a service request is detected.C
When the IP phone is picked up，the IP phone initiates the service request.D
The directly connected router passes the collected digits to its call agent，and the call agent looks up in its call-routing table the called number.
考题
多选题Which two statements are true about the function of CAC？ （）ACAC provides guaranteed voice quality on a link.BCAC artificially limits the number of concurrent voice calls.CCAC is used to control the amount of bandwidth that is taken by a call on a link.DCAC prevents oversubscription of WAN resources that is caused by too much voice traffic.ECAC allows an unlimited number of voice calls while severely restricting， if necessary， other forms of traffic.FCAC solves voice congestion problems by using QoS to give priority to UDP traffic.
考题
单选题What type of Call Admission control in CallManager allows for limits to the bandwidth consumed by active calls？（）A
regionsB
partitionsC
locationsD
device Pools
考题
多选题Which two statements are correct about the signaling methods that are utilized for transmitting voice？ （）AChannel-associated signaling transmits control signals in band and therefore reduces the bandwidth available for the voice data stream.BChannel-associated signaling utilizes a separate TDM channel for transmitting control signals.CCommon channel signaling transmits control signals in band and therefore reduces the bandwidth available for the voice data stream.DCommon channel signaling uses one of the TDM channels to transmit control information reducing the number of channels available for voice.EISDN BRIs implement channel-associated signaling.
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