多项选择题
Refer to the exhibit.
Which three statements are true about the voice VLAN configuration of the Catalyst switch？ （）
A.The packet priority received from a device that is connected to the phone will be unmodified.
B.The packet priority received from a device that is connected to the phone will be overridden.
C.Incoming CoS values in packets from the connected phone will be left unmodified.
D.Packets without aCoS value that is set by the phone will be set to a value of 5.
E.Incoming CoS values in packets from the connected phone will be reset to a value of 5.
F.Packets without aCoS value that is set by the phone will be set to the default CoS value.
相关考题
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多项选择题
The Cisco AutoQoS feature is being used throughout the Company VOIP network. Which three statements about this feature are true？（）
A.The "mls qos" global configuration command must be entered before configuring AutoQoS.
B.CEF must be enabled.
C.The "no auto qos voip" command is used to disable Cisco AutoQos and revoke all configurations generated by Cisco AutoQos.
D.CDP must be enabled.
E.SNMP must be enabled. -
单项选择题
Refer to the exhibit. What is the effect on the trust boundary of configuring the command mls qos trust cos on the switch port that is connected to the IP phone？（）
A.Effectively the trust boundary has been moved to the IP phone.
B.RTP will be used to negotiate aCoS value based upon bandwidth utilization on the link.
C.The switch is rewriting packets it receives from the IP phone and determining theCoS value.
D.The switch will no longer tag incoming voice packets and will trust the distribution layer switch to set theCoS.
E.The host is now establishing theCoS value and has effectively become the trust boundary.
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单项选择题
Refer to the exhibit. Which switch interface configuration command would automatically configure quality of service （QoS） for voice over IP （VoIP） within a QoS domain？ （）
A.switchport priority extend trust
B.mls qos trust
C.switchport priority extend cos 7
D.auto qos voip cisco-phone
