问题 填空题

某单位内部网络拓扑结构如图3所示,在该网络中采用RIP路由协议。

以下是路由器R1的部分配置,请补充[46]~[50]空白处完成其配置。

!

R1(config) #interface fastethernet0

R1(config-if) #ip address (46) 255.255.255.0

R1(config-if) # (47) (开启端口)

!

R1(config) #interface serial 0

R1(config-if) # ip address 192.168.251.1 (48)

!

R1(config) # ip routing

R1(config) # router rip (进入RIP配置模式)

R1(config-router) # network 192.168.1.0 (声明网络)

R1(config-router) # network 192.168.251.0 (声明网络)

R1(config-router) # (49) (声明网络)

R1(config-router) # (50) (设置RIP协议版本2)

48()

答案

参考答案:255.255.255.0

单项选择题
阅读理解

阅读理解。

      A good way to pass an exam is to work hard every day in a year. You may fail in the exam if you are lazy

(懒惰) for most of the year and then work hard only a few days before the exam. If you are taking an English

exam, do not only learn rules of grammar. Try to read stories in English. Speak in English whenever you can.

A few days before the exam you should go to bed early. Do not stay up late studying. Before you start the exam,

read carefully over the question paper, try to understand the exact (确切的) meaning of each question. When

you have at last finished your exam, read over your answers. Correct (改正) the mistakes if there are any, and

be sure that you have not missed anything out.

1. How can we do well in exams? [ ]

A. We should work hard every day in the year.

B. We should go to bed early a few days before an exam.

C. We should read over the answers before we hand in our papers.

D. We should do A, B, C.

2. Learning rules of grammar ________ to pass an exam. [ ]

A. is enough

B. is not enough

C. is not impossible

D. is no use

3. Speak in English whenever you can. It is _______ to your English study. [ ]

A. helpful

B. impossible

C. wonderful

D. foolish

4. Make sure that you _______ before you hand in your paper. [ ]

A. remember rules of grammar

B. have thought over and over again

C. have answered all the questions

D. have read stories in English

5. In the sentence "Do not stay up late at night studying", the expression "stay up" means _______. [ ]

A. 逗留

B. 呆坐

C. 熬夜

D. 停止