问题 问答题

【问题4】
路由器Router2的各接口已启用MPLS协议进程。在路由器Router2特权模式下分别输入以下3条命令:
①show mpls ldp neighbor
②show mpls ldp discovery
⑧show mpls ldp bindings
请解释以上3条配置命令各自完成什么功能

答案

参考答案:1) “show mpls ldp neighbor”命令查看邻居身份和邻居的状态
2) “show mpls ldp discovery”命令查看TDP或者LDP标答发现来源
3) “show mpls ldp bindings”命令查看IP路由与其绑定的标签

解析:这是一道要求读者深入掌握在路由器上查看MPLS相关配置信息的命令解释题,本题所涉及的知识点有:
1)在设置路由器Router2实施邻居发现和标签交换之后,在“Router#”特权模式下使用“show mpls ldp neighbor”命令,可以查看邻居身份(以IP地址的形式)和邻居的状态。需要注意的是对方的身份和状态(对方的状态应该为OPER)。
2)使用“show mpls ldp discovery”命令可查看TDP或者LDP标签发现来源。
3)使用“show mpls ldp bindings”命令可查看IP路由与其绑定的标签。
4)使用“show mpls Interface”命令可查看MPLS在所配置的接口上是否已启用。

阅读理解

A beautiful woman took a plane on business. She found her seat and sat down next to a young man. The man was just thinking of making a few dollars on the plane. When he saw the woman, he got an idea.

“Hey! Would you like to play a game?” he asked the woman. “No, thank you. I just want to take a nap (打盹),” the woman answered. “It’s really easy. All you have to do is to answer the questions that I ask you. If you don’t know the answer, you give me five dollars. If I don’t know the answer to your question, then I’ll give you five dollars.” “No,” the woman still refused. “OK. If I don’t know the answer to your question, I’ll give you five hundred dollars. How about that?” the man said. Then the woman became interested and decided to join in the game.

“OK. How many moons does Jupiter (木星) have?” asked the young man. The woman reached into her purse and took out a five-dollar bill. “What goes up the mountain with three legs and comes back with four?” the woman asked. Then the young man took out his computer and searched the Internet for an answer. Minutes later, the young man handed five hundred dollars to the woman.

After a few hours, the young man really wanted to know the answer to the question. So he asked the woman, “What is the answer to your question?” The woman reached into her purse and handed the young man a five-dollar bill.

小题1:Why did the man ask the woman to play a game?

A.He wanted to show his kindness.

B.He wanted to have a pleasant journey.

C.He wanted to earn some money from it.

D.He wanted to make friends with the woman.小题2:How much did the woman get at the end of the story?

A.$ 500.

B.$ 5.

C.$ 10.

D.$ 490.小题3:What can we learn from the last paragraph?

A.The woman told the man the answer to her question.

B.The woman gave the man’s money back to him.

C.The woman asked the man another question.

D.The woman didn’t know the answer, either.小题4:We can learn from the story that the woman is ______.

A.clever

B.friendly

C.polite

D.honest

问答题 简答题