When calls are denied by call admission control （CAC）， the calls are rerouted through the PSTN via the use of which Cisco CallManager feature？（）

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

多项选择题WhataretwocharacteristicsoftheDiffServmodel？（）

A.service guarantee
B.traffic that is divided into classes
C.not scalable to large implementations
D.QoS mechanisms that are used without prior signaling
E.applications that signal their particular QoS and bandwidth requirements

多项选择题WhichthreedevicesareusedbytheCiscoWirelessControlSystem（WCS）forwirelessmanagement？（）

A.WLAN controllers
B.WLAN Solution Engine （WLSE）
C.Cisco Wireless Control System （WCS）
D.Cisco Wireless Location Appliance
E.lightweight access point （AP）
F.autonomous access point （AP）