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单选题
What does the interface subcommand switchport voice vlan 222 indicate？（）
A
The port is configured for both data and voice traffic.
B
The port is fully dedicated to forwarding voice traffic.
C
The port will operate as an FXS telephony port.
D
Voice traffic will be redirected to VLAN 222.
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What is the function of the command switchport trunk native vlan 999 on a Cisco Catalyst switch（）。A、It creates a VLAN 999 interface.B、It designates VLAN 999 for untagged traffic.C、It blocks VLAN 999 traffic from passing on the trunk.D、It designates VLAN 999 as the default for all unknown tagged traffic.
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You need to configure a new Cisco router to be installed in the Company VOIP network. Which three interface commands will configure the switch port to support a connected Cisco phone and to trust the CoS values received on the port if CDP discovers that a Cisco phone is attached？ （）A、switchport voice vlan vlan-idB、mls qos trust device cisco-phoneC、switchport priority extend cos_valueD、mls qos trust cosE、mls qos trust override cos
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单选题A new Company switch was just configured using the "switchport trunk native vlan 7" command. What does this interface command accomplish？（）A
Causes the interface to apply ISL framing for traffic on VLAN 7B
Configures the trunking interface to forward traffic from VLAN 7C
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考题
单选题Cisco交换机指派静态访问端口到Vlan中的命令顺序是（）。 ①Configure terminal ②switchport mode access ③interface interface-id ④switchport access vlan vlan-idA
①③②④B
①②③④C
①②④③D
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考题
单选题VLAN 3 is not yet configured on your switch.What happens if you set the switchport access vlan 3 commmand interface configuration mode?（）A
The command is accepted and the respective VLAN is added to vlan dat.B
The command is rejected.C
The command is accepted and you must configure the VLAN manually.D
The port turns amber.
考题
单选题You need make configuration changes to an existing layer 3 switch in the Company network. On a multilayer Catalyst switch， which interface command is used to convert a Layer 3 interface to a Layer 2 interface？（）A
switchport access vlan vlan-idB
switchportC
switchport mode accessD
no switchportE
None of the other alternatives apply
考题
单选题What protocol does an IP phone use to learn the voice VLAN ID it should use for voice traffic？（）A
VTPB
802.1 qC
CDPD
Skinny Station Protocol
考题
多选题Which interface commands would you enter on a Catalyst 2900 switch, if your goal was to bring all VLAN traffic to another directly connected switch?（）ASwitch(config-if)# vlan allBSwitch(config-if)# switchport trunk encapsulation dot1qCSwitch(config-if)# switchport access vlan allDSwitch(config-if)# switchport mode trunkESwitch(config-if)# switchport access vlan 303
考题
单选题What is the function of the command switchport trunk native vlan 999 on a Cisco Catalyst switch（）。A
It creates a VLAN 999 interface.B
It designates VLAN 999 for untagged traffic.C
It blocks VLAN 999 traffic from passing on the trunk.D
It designates VLAN 999 as the default for all unknown tagged traffic.
考题
单选题Nexus7000# config t Nexus700（config）# interface ethernet 2/11 Nexus700（config-if）# switchport mode private-vlan host Nexus700（config-if）# switchport private-vlan host-association 14 50 Nexus700（config-if）# exit Nexus700（config）# What will this command sequence achieve？（）A
associate interface E2/11 to community VLANs 14 and 50B
associate interface E2/11 to secondary VLANs 14 and 50C
associate interface E2/11 to primary VLAN 50 and secondary VLAN 14D
associate interface E2/11 to primary VLAN 14 and secondary VLAN 50
考题
多选题Which two statements are true about voice VLANs？（）AVoice VLANs are only used when connecting an IP phone and a host to distinct switch portsBAccess ports that are configured with voice VLANs will always trust the CoS that is received from IP phonesCAccess ports that are configured with voice VLANs may or may not override the CoS value that is received from an IP phoneDVoice VLANs are configured using the switchport voice vlan vlan-ID interface configuration commandEVoice VLANs provide a trunking interface between an IP phone and an access port on a switch to allow traffic from multiple devices that are connected to the portFEnabling Voice VLAN on a switch port will automatically configure the port to trust the incoming CoS markings
考题
单选题VLAN 3 is not yet configured on your switch. What happens if you set the switchport access vlan3 commmand interface configuration mode？（）A
The command is accepted and the respective VLAN is added to vlan dat.B
The command is rejected.C
The command is accepted and you must configure the VLAN manually.D
The port turns amber.
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