问题 单项选择题

使用两个半网关构成一个网关的理由是______。

A.能提高数据传输效率

B.便于两个单位分别进行管理与维护

C.便于降低组网成本

D.能实现网络层以上不同协议的互连

答案

参考答案:B

解析: 可以把一个网关分成两个半网关,再将它们连接起来。每个半网关分别连人不同网络。由于网络往往是属于不同单位的,所以这种半网关便于两个单位分别进行管理与维护,可避免一些非技术性的麻烦。

阅读理解

阅读理解。

     Odland remembers like it was yesterday working in an expensive French restaurant in Denver. The ice

cream he was serving fell onto the white dress of a rich and important woman.

     Thirty years have passed, but Odland can't get the memory out of his mind, nor the woman's kind reaction

(反应). She was shocked, regained calmness and, in a kind voice, told the young Odland, "It's OK. It wasn't

your fault." When she left the restaurant, she also left the future Fortune 500CEO (总裁) with a life lesson:

You can tell a lot about a person by the way he or she treats the waiter.

     Odland isn't the only CEO to have made this discovery. Rather, it seems to be one of those few laws of the

land that every CEO learns on the way up. It's hard to get a dozen CEOs to agree about anything, but most

agree with the Waiter Rule. They say how others treat the CEO says nothing. But how others treat the waiter

is like a window into the soul.

     Watch out for anyone who pulls out the power card to say something like, "I could buy this p[lace and fir

you," or "I know the owner and I could have you fired." Those who say such things have shown more about

their character(人品) than about their wealth and power.

     The CEO who came up with it, or at least first wrote it down, is Raytheon CEO Bill Swanson. He wrote

a best-selling book called Swanson's Unwritten Rules of Management.

     "A person who is nice to you but rude to the waiter, or to others, is not a nice person," Swanson says, "I

will never offer a job to the person who is sweet to the boss but rude to someone cleaning the tables."

1. What happened after Odland dropped the ice cream onto the woman's dress?

A. He was fired.

B. He was blamed.

C. The woman comforted him.

D. The woman left the restaurant at once.

2. Odland learned one of his life lessons from _______.

A. his experience as a waiter

B. the advice given by the CEOs

C. an article in Fortune

D. an interesting best-selling book

3. According to the text, most CEOs have the same opinion about _______.

A. Fortune 500 companies

B. the Management Rules

C. Swanson's book

D. the Waiter Rule

4. From the text we can learn that ______.

A. one should be nicer to important people

B. CEOs often show their power before others

C. one should respect others no matter who they are

D. CEOs often have meals in expensive restaurants

单项选择题