單項選擇題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.


您可能感興趣的試卷

你可能感興趣的試題

1.多項選擇題下面哪些選項是物理層的基本功能？（）

A.在終端設備之間傳送比特流
B.建立、維護虛電路，進行差錯校驗和流量控制
C.定義電壓、接口、線纜標準、傳輸距離等特性

2.單項選擇題IP地址190.233.27.13/16所在的網(wǎng)段地址是（）。

A.190.0.0.0
B.190.233.0.0
C.190.233.27.0
D.190.233.27.1

3.單項選擇題可路由協(xié)議的網(wǎng)絡地址由哪兩部分組成？（）

A.網(wǎng)絡地址和主機地址
B.主機地址和網(wǎng)絡掩碼
C.網(wǎng)絡地址和網(wǎng)絡掩碼

4.單項選擇題RFC文檔是下面哪一個標準的工作文件？（）

A.ISO
B.ITU
C.IETF
D.IEEE

5.多項選擇題What are three advantages of VLANs?（）

A.VLANs establish broadcast domains in switched networks.
B.VLANs utilize packet filtering to enhance network security.
C.VLANs provide a method of conserving IP addresses in large networks.
D.VLANs provide a low-latency internetworking alternative to routed networks.
E.VLANs allow access to network services based on department, not physical location.
F.VLANs can greatly simplify adding, moving, or changing hosts on the network.