交换机1和2还有3相互连接1的f0/1和2的f0/1相连2的f0/2和3的f0/2相

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问题单项选择题

交换机1和2还有3相互连接1的f0/1和2的f0/1相连2的f0/2和3的f0/2相连3的f0/3和1的f0/3相连3条链路都已经配置了trunk，其中1的优先级为4096，2的优先级为8192，3为默认我们在每台交换机上开启快速生成树，那么3的交换机的f0/2接口的角色是（）.

A、根端口

B、指定端口

C、替代端口

D、备份端口

答案

参考答案：C

阅读理解

阅读理解。

1. If you want to buy English books, you'd better call the number _____.

A. (010) 67661423

B. (8610) 64622288

C. (8610) 64612502

D. (024) 46364148

2. Where can you have fun and watch displays?

A. In Flight No. BA564.

B. In People's F.ducation Press.

C. At Zhonglu Hotel.

D. In Deeside Animal Park.

3. When does the plane reach Milan?

A. At 11:30.

B. At 14:35.

C. At 10:00.

D. At 18:00.

4. If you travel to Beijing, you'd better live in _____.

A. Milan

B. PEP Teaching Materials Centre

C. Zhonglu Hotel

D. Southdene

填空题