多項選擇題What are two benefits of control plane policing？（）

A.protection against denial of service （DoS） attacks at infrastructure routers and switches
B. protection against known worm attacks in routers and switches
C.quality of service （QoS） control for packets that are sourced from the data plane of Cisco routers and switches
D.quality of service control （QoS） for packets that are destined to the control plane of Cisco routers and switches
E.quality of service （QoS） control for packets that are destined to the data plane of Cisco routers and switches


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1.多項選擇題Which two statements about the WLAN Solution Engine （WLSE） are true？（）

A.WLSE supports centralized configuration. 
B.WLSE supports distributed configuration.
C.WLSE can pick up statistics on a device even if the device is not properly configured.
D.WLSE can be used to upgrade the firmware on APs and bridges.
E.WLSE monitors device fault and performance conditions but cannot report any policy misconfigurations

2.多項選擇題In a VoIP network， which three call signaling protocols are supported by the Cisco CallManager for call setup， call maintenance， and call teardown？（）

A.H323
B.UDP
C.RTP
D.TCP
E.Media Gateway Control Protocol (MGCP)  
F.session initiation protocol (SIP) 

4.多項選擇題SDM creates a low latency queuing （LLO） service policy with its associated classes. What are the two types of low latency queuing available using the SDM OoS wizard？（）

A.FIFO queuing， which provides a means to hold packets while they are waiting to exit an interface
B.Priority queuing， which ensures a fixed amount of bandwidth
C.Custom queuing （CO）， which provides a queuing tool that services all queues， even during times of congestion
D.Bandwidth queuing， which ensures a minimum amount of bandwidth
E.Weighted fair queuing （WFO）， which classifies packets based on flows

5.多項選擇題Which two traffic classes in a converged network require a OoS model other than the standard FIFO？（）

A.World Wide Web traffic using load balanced web servers
B.voice
C.peer to peer applications mission critical applications
D.peer to peer applications
E.multicast routing protocols

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