單項選擇題Identify the link efficiency mechanism？（）

A.LFI
B.LLQ
C.RSVP
D.WFO
E.WRED


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1.單項選擇題To provide quality of service （QoS） for voice traffic in an IEEE 802.1 q network， which class of service （CoS） value should be used in the 3-bit， user priority bits （PRI） field？ （）

A.The PRI field should contain the Cos value of 010
B.The PRI field should contain the Cos value of 011
C.The PRI field should contain the Cos value of 100
D.The PRI field should contain the Cos value of 101
E.The PRI field should contain the Cos value of 110
F.The PRI field should contain the CoS value of 111

2.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

3.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

4.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) 

5.單項選擇題What gateway port type can analog phones be connected to for use on a VoIP network？（）

A.FXS
B.FSO
C.E&M
D.auxiliary port
E.802.3af ethernetports

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