问题 单项选择题

4台Linux主机通过图6-1所示的方式互联,则实现PC1与PC4之间互访的步骤为:

1.运行 (3) 命令关闭计算机,在PC2与PC3上添加第二块网卡(eth1),重新启动;

2.在PC2与PC3上为第二块网卡分配IP地址,并激活该网络接口,对于PC3,应执行 (4)

3.如果使用routed作为路由器进程,则作为路由器的PC2与PC3仅支持路由协议 (5) ;如果在PC2与PC3上设置静态路由信息并开启路由功能,对于PC2则应执行 (6)

4.在PCI和PC4上配置各自的默认同关,对于PC1,应执行 (7)

(3)处填()

A.reboot

B.shutdown

C.init0

D.init6

答案

参考答案:B

多项选择题
完形填空

 小题1: This was not because the woods and fields were always far away, but because they were too far from the city to permit people to make a day trip between morning and nightfall.

 小题2: He decided to turn his little school house into a dormitory for the summer holidays. Anyone who brought his sleeping bag and cooking equipment along could stay there for a very small quantity of money. The idea was a success. A few years later, the school house was much too small to hold the many young people who wanted to stay there.   小题3: This was the first hostel(青年招待所).

Today, young students and workers of every country can meet in the hostel and get to know each other. When young people arrive at the hostel, they have only to show their cards of membership in a hostel organization in their own country.   小题4: 

Often, at the evening meal, a group of boys and girls from various parts of the country or world will happen to meet at the same hostel. They may put their food together and prepare a dinner with many kinds of dishes. Sometimes a program will be organized after the meal with dances, songs, or short talks followed by a question period.   小题5: For this reason, a few weeks spent ‘hostelling’ can be just as useful a part of one’s education as classes in school.

A.In 1970, a young German school master had an idea which changed this situation.

B.People could stay in the hostel if they brought enough equipment with them.

C.One can learn a lot about other places, just by meeting people from those places.

D.As a result, a dormitory was set up in an old castle nearby.E. For years, children in the industrial areas of Europe seldom left their cities to see the beauties of the countryside.

F. More and more young people went to the hostel for summer holidays.

G. This card will permit them to stay in a hostel all over the world for very low prices.