單項選擇題

The Company network administrator has entered the "auto qos voip cisco-phone" command on switch R1.
What does this command do？（）

A.It disables the trust boundary feature because the switch knows a Cisco IP phone is attached.
B.The switch assigns a CoS value of 5 to incoming packets.
C.If a Cisco IP phone is attached and removed， the switch continues to trust the CoS values as long as the switch is not rebooted.
D.It turns on STP to see if a Cisco IP phone is attached.
E.If a Cisco IP phone is attached， the switch trusts the CoS.
F.None of the other alternatives apply.

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多項選擇題

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.

多項選擇題

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.

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The Company network administrator has entered the "auto qos voip cisco-phone" command on switch R1. What does this command do？（）

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Refer to the exhibit. Which three statements are true about the voice VLAN configuration of the Catalyst switch？ （）

The Cisco AutoQoS feature is being used throughout the Company VOIP network. Which three statements about this feature are true？（）

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The Company network administrator has entered the "auto qos voip cisco-phone" command on switch R1.
What does this command do？（）

Refer to the exhibit.
Which three statements are true about the voice VLAN configuration of the Catalyst switch？（）

The Cisco AutoQoS feature is being used throughout the Company VOIP network.
Which three statements about this feature are true？（）