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关于Voice VLAN的工作模式，说法正确的有（）。
- A、Voice VLAN的工作模式包含自动和手动两种
- B、自动模式下，系统会识别IP Phone发出的报文，如果匹配为语音报文，则将连接IP Phone的端口加入Voice VLAN
- C、手动模式下，需要手工将IP Phone加入Voice VLAN中
- D、手动模式下，系统将不会向端口下发ACL
参考答案
更多 “关于Voice VLAN的工作模式，说法正确的有（）。A、Voice VLAN的工作模式包含自动和手动两种B、自动模式下，系统会识别IP Phone发出的报文，如果匹配为语音报文，则将连接IP Phone的端口加入Voice VLANC、手动模式下，需要手工将IP Phone加入Voice VLAN中D、手动模式下，系统将不会向端口下发ACL” 相关考题
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关于Voice VLAN的工作模式，说法正确的是（）。A、Voice VLAN的工作模式包含自动和手动两种B、自动模式下，系统会识别IP Phone发出的报文，如果匹配为语音报文，则将连接IP Phone的端口加入V.oice VLANC、手动模式下，需要手工将IP Phone加入Voice VLAN中D、手动模式下系统将不会向端口下发ACL
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You need to configure a new Company Catalyst 3560 switch for a VOIP-enabled office. Which three statements are true about the voice VLAN feature on this switch？（）A、The default CoS value for incoming traffic is set up to 0.B、The CoS value is trusted for 802.1p or 802.1q tagged traffic.C、PortFast is automatically disabled when a voice VLAN is configured.D、The voice VLAN feature is disabled by default.E、The IP phone accepts the priority of all tagged and untagged traffic and sets the CoS value to 4.F、When the voice VLAN feature is enabled， all untagged traffic is sent according to the default CoS priority of the port
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如何将 en.1.1.x设置成三个IP ,三个VLAN ,一个端口的工作模式,并将VLAN tag 打开
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Which three statements are true about the voice VLAN feature on a Catalyst 2950 switch？ （Choose three.）（） A、 The CoS value is trusted for 802.1p or 802.1q tagged traffic.B、 The voice VLAN feature is disabled by default.C、 The IP phone accepts the priority of all tagged and untagged traffic and sets the CoS value to 4.D、 When the voice VLAN feature is enabled， all untagged traffic is sent according to the default CoS priority of the port.E、 PortFast is automatically disabled when a voice VLAN is configured.F、 The default CoS value for incoming traffic is set to 0.
考题
Which statement is true about voice VLANs？ （）A、When the voice VLAN feature is enabled， all untagged voice and data traffic is sent through the voice VLAN.B、The voice VLAN feature is enabled by default.C、The IP phone overrides the priority of all incoming data traffic （tagged and untagged） and sets the CoS value to 0.D、The default CoS value is 1 for incoming voice and data traffic.
考题
Which of the following is not information provided from an IP phone to a Catalyst switch using CDP？（）A、 device PoE requirementsB、 device IP addressC、 device voice VLAN IDD、 device platform
考题
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
单选题You are a network administrator of a large investor relations company that uses a switchednetwork to carry both data and IP telephony services. Why should you carry voice traffic on aseparate VLAN？（）A
IP phones require inline power and must be in separate VLAN to receive inline powerB
IP telephony applications require prioritization over other traffic as they are more delaysensitiveC
IP phones can only receive IP addresses through DHCP if they are in separate VLAND
The CDP frames from the IP phone can only be recognized by the switch if the phone is in anauxiliary vlan
考题
单选题Which of the following is not information provided from an IP phone to a Catalyst switch using CDP？（）A
device PoE requirementsB
device IP addressC
device voice VLAN IDD
device platform
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
单选题Refer to the exhibit. Which statement is true about a voice VLAN？（）A
Physically the voice network and the data network are separate.B
The voice traffic will normally be on a different IP subnet than will the data traffic.C
End user intervention is necessary to place the phone into the proper VLAN.D
The same security policy should be implemented for both voice and data traffic.E
The data VLAN must be configured as the native VLAN.
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
多选题Which three statements are true about the voice VLAN feature on a Catalyst 2950 switch？ （Choose three.）（）AThe CoS value is trusted for 802.1p or 802.1q tagged traffic.BThe voice VLAN feature is disabled by default.CThe IP phone accepts the priority of all tagged and untagged traffic and sets the CoS value to 4.DWhen the voice VLAN feature is enabled， all untagged traffic is sent according to the default CoS priority of the port.EPortFast is automatically disabled when a voice VLAN is configured.FThe default CoS value for incoming traffic is set to 0.
考题
单选题Refer to the exhibit. Which statement is true about a voice VLAN？（）A
Physically the voice network and the data network are separateB
The voice traffic will normally be on a different IP subnet than will the data trafficC
End user intervention is necessary to place the phone into the proper VLAND
The same security policy should be implemented for both voice and data trafficE
The data VLAN must be configured as the native VLAN
考题
多选题You need to configure a new Company Catalyst 3560 switch for a VOIP-enabled office. Which three statements are true about the voice VLAN feature on this switch？（）AThe default CoS value for incoming traffic is set up to 0.BThe CoS value is trusted for 802.1p or 802.1q tagged traffic.CPortFast is automatically disabled when a voice VLAN is configured.DThe voice VLAN feature is disabled by default.EThe IP phone accepts the priority of all tagged and untagged traffic and sets the CoS value to 4.FWhen the voice VLAN feature is enabled， all untagged traffic is sent according to the default CoS priority of the port
考题
单选题Which statement is true about voice VLANs？ （）A
When the voice VLAN feature is enabled， all untagged voice and data traffic is sent through the voice VLAN.B
The voice VLAN feature is enabled by default.C
The IP phone overrides the priority of all incoming data traffic （tagged and untagged） and sets the CoS value to 0.D
The default CoS value is 1 for incoming voice and data traffic.
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