单项选择题

A.Cisco IOS gateways provide services such as address t……

What type of services are provided by the Cisco IOS gateways in a VoIP network with Cisco CallManger functionality？（）

A.Cisco IOS gateways provide services such as address translation and network access control for the devices on the network
B.Cisco IOS gateways provide services such as bandwidth management and accounting
C.Cisco IOS gateways provide media termination and signal translation between the public switched telephone network （PSTN） and IP networks
D.Cisco IOS gateways provide zone management for all registered endpoints in the network

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热门试题

单项选择题TheAcmecompanyhasdeterminedthatduringitsbusiesthours，theaveragenumberofinternalVoIPcallsacrosstheWANlinkisfour（4）.Sincethisisanaverage，theWANlinkhasbeensizedforsix（6）callswithnocalladmissioncontrol.WhatwillhappenwhenaseventhcallisattemptedacrosstheWANlink？（）

A.the seventh call is routed via the PSTN
B.the call is denied and the original six （6） calls remain
C.the call is completed and the first call is dropped
D.the call is completed， but all calls have quality issues
E.the call is completed but the seventh call has quality issues

单项选择题Whencallsaredeniedbycalladmissioncontrol（CAC），thecallsarereroutedthroughthePSTNviatheuseofwhichCiscoCallManagerfeature？（）

A.automated alternate routing （AAR）
B.Cisco CallManager Attendant Console
C.real-time protocol （RTP）
D.Survivable Remote Site Telephony （SRST）

多项选择题WhichtwostatementsabouttheQoSfunctionalityoftheCiscoSDMaretrue？（）

A.the first step when using the SDM QoS wizard is to select the inbound interface on which the QoS policy must be applied
B.the SDM QoS wizard can be used to optimize LAN， WAN， and VPN interfaces
C.he SDM QoS wizard supports network-based application recognition （NBAR） to provide deep and stateful packet inspection
D.he SDM QoS wizard will apply custom queuing and priority queuing policies to the identified interfaces
E.he SDM QoS wizard will apply low latency-queuing，custom-queuing and priority-queuing policies to the identified interfaces
F.to create and manage the QoS settings， the user must select the QoS wizard task under the Monitor option

单项选择题WhichIOSfeatureprovidesdialplanscalabilityandbandwidthmanagementforH.323VoIPimplementations？（）

A.gatekeeper
B.Call Routing
C.Call Admission Control
D.Digital Signal Processors

多项选择题WhichthreepiecesofinformationareusedtocalculatethetotalbandwidthofaVoIPcall？（）

A.the packetization size
B.the serialization of the interface
C.the quantization
D.the packet rate
E.the UDP overhead
F.the TCP overhead