VLAN Tagging, also known as Frame Tagging, is a method developed by Cisco to help identify packets travelling through trunk links. When an Ethernet frame traverses a trunk link, a special VLAN tag is added to the frame and sent across the trunk link .How

题目

VLAN Tagging, also known as Frame Tagging, is a method developed by Cisco to help identify packets travelling through trunk links. When an Ethernet frame traverses a trunk link, a special VLAN tag is added to the frame and sent across the trunk link .How does ERS use the VLAN tag?（）

A、provide service internetworking
B、support transparency for Layer 2 frames
C、indicate destination as a connection identifier
D、map to the DLCI in service internetworking

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相似问题和答案

第1题：

A new trunk has been configured on a switch in the Ezonexam LAN. By default, which VLANs are allowed over this trunk link?

A. No VLANs

B. Only the VLANs that are specified when creating the trunk

C. Only VLANs 1-64

D. All VLANs

E. All VLAN's except VLAN 1

F. None of the above

正确答案：D
D

第2题：

A. provide service internetworking

B. support transparency for Layer 2 frames

C. indicate destination as a connection identifier

D. map to the DLCI in service internetworking

参考答案：C

第3题：

VLAN的Trunk实现采用Frame－Tagging()方式,目前常用的两个标准分别是()和()。

答案：帧标记,ISL：Inter-Switchlink，是Cisco交换机独有的协议,IEEE802.1Q：是国际标准协议，被几乎所有的网络设备生产商所共同支持

第4题：

Which configuration option will cause the link between two Cisco 3600 Series Multiservice Platforms to become a functional trunk？（）

A、switchport dynamic auto switchport dynamic auto
B、switchport access vlan 10 switchport mode dynamic desireable
C、switchport mode trunk switchport nonegotiate
D、Leave both ports with the default trunk settings

正确答案:B

第5题：

Two switches are connected through a trunk link.which two commands show that there is a native VLAN mismatch on that link?()

A.show interfaces interface

B.show vlan bri

C.show interfaces interface switchport

D.show interface interface trunk

E.show interfaces vlan

参考答案：C, D

第6题：

When a new trunk link is configured on an IOS based switch, which VLANs are allowed over the link?()

A. All defined VLANs are allowed on the trunk by default.

B. Each VLAN, or VLAN range, that is specified with the switchport mode command.

C. Each VLAN, or VLAN range, that is specified with the vtp domain command.

D. Each VLAN, or VLAN range, that is specified with the vlan database command.

参考答案：A

第7题：

Refer to the exhibit A frame on vlan 1 on switch s1 is sent to switch s2 when the frame is received on vlan 2,what causes this behavior?()

A.trunk mode mismatches

B.vlans that do not correspond to a unique IP subnet

C.native vlan mismatches

D.allowing only vlan 2 on the destination.

参考答案：C

第8题：

下面用于在交换机中配置Trunk承载的VLAN的命令是( )

A、access vlan vlan-id

B、port link-type trunk

C、port trunk allow-pass vlan

D、set port vlan vlan-id

答：B、C

解析：

（1）首先我们需要确定我们需要用到的端口模式：
Access介入模式 pc—交换机 Trunk中继链路模式：交换机—交换机
（2）其次在两个交换机上各创建vlan5、vlan10的端口，并把pc19与pc21的端口设置为access模式并加入vlan5，把pc20与pc22的端口设置为access模式并加入vlan10，把两个交换机相连接的端口设置为trunk中继链路模式，并把vlan端口加入到中继链路。
（3）最后，打开计算机，使用ping命令进行查看。
Swich1:
system-view //进入系统试图
[Huawei]vlan batch 5 10 //创建vlan端口
[Huawei]interface ethernet 0/0/1 //进入e0/0/1端口进行配置
[Huawei-Ethernet0/0/1]port link-type access //设置端口的模式为access
[Huawei-Ethernet0/0/1]port default vlan 5 //把端口加入vlan 5
[Huawei-Ethernet0/0/1]interface ethernet 0/0/2 //进入e0/0/2端口进行配置
[Huawei-Ethernet0/0/2]port link-type access //设置端口模式为access
[Huawei-Ethernet0/0/2]port default vlan 10 //把端口加入vlan 5
[Huawei-Ethernet0/0/2]interface ethernet 0/0/3 //进入e0/0/3端口
[Huawei-Ethernet0/0/3]port link-type trunk //设置端口模式为trunk
[Huawei-Ethernet0/0/3]port trunk allow-pass vlan 5 10 //把vlan 5 10加入到中继链路

第9题：

When a new trunk link is configured on an IOS based switch, which VLANs are allowed over the link()。

A.By default, all defined VLANs are allowed on the trunk.

B.Each single VLAN, or VLAN range, must be specified with the switchport mode command.

C.Each single VLAN, or VLAN range, must be specified with the vtp domain command.

D.Each single VLAN, or VLAN range, must be specified with the vlan database command.

参考答案：A

第10题：

多个VLAN要跨跃多台交换机，不需要设置Trunk Link。

正确答案:错误

VLAN Tagging, also known as Frame Tagging, is a method developed by Cisco to help identify packets travelling through trunk links. When an Ethernet frame traverses a trunk link, a special VLAN tag is added to the frame and sent across the trunk link .How

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