问题 单项选择题

下列关于计费管理的说法错误的是______。

A.计费管理能够根据具体情况更好地为用户提供所需资源

B.在非商业化的网络中不需要计费管理功能

C.计费管理能够统计网络用户使用网络资源的情况

D.使用户能够查询计费情况

答案

参考答案:B

解析:[知识点] 网络管理[评析] 计费管理负责记录网络资源的使用,计费管理也称为记账审计管理,包括收集并处理网络计费信息。 ①计费管理的目的;跟踪个人和团体用户对网络资源的使用情况,对其收取合理的费用;控制和监测网络操作的费用和代价。 ②计费管理的主要作用:测量和报告基于个人或团体用户的计费信息,分配资源并计算用户通过网络传输数据的费用,然后给用户开出账单。 ⑧计费管理的功能包括:建立和维护计费数据库,能对任意一台机器进行计费;建立和管理相应的计费策略:能够对指定地址进行限量控制,当超过使用限额时将其封锁;并允许使用单位或个人按时间、地址等信息查询网络的使用情况。

阅读理解

Harriet Tubman lived a life filled with adventure.Tubman worked with the Underground Railroad. She helped many slaves reach freedom in the North. She was a scout(侦察员)in the Civil War. She also worked as a nurse during the war.

Life in the Old South was very hard for slaves. Most slaves lived in small houses.They had large families, and even the children had to work in the fields.Most slaves dreamed of getting to the north.They wanted to be free.

One day Harriet saw a slave trying to run away. Then she saw the keeper running after him with a whip.Harriet stood in the keeper's way.The keeper took a weight and threw it at the slave.He hit Harriet above her eyes.It almost killed her. The scar(伤疤)on Harriet's head was an emblem(向征)of her will to fight for what she believed in.

The Fugitive(逃亡)Slave Law made Harriet's job harder.The law said that slaves could be caught even in the North. Harriet began leading slaves all the way into Canada.There they were safe.The law couldn't hurt them there.

When Harriet came for her mother and father,they were very old.Harriet was afraid they might not be able to make the trip.She got a horse.She and a friend made a wagon.She helped her mother and father ride to freedom.

小题1:The story mainly tells us about______.

A.life of the slaves in the Old South

B.life of Harriet Tubman

C.Harriet Tubman's fight for freedom for the slaves

D.the Civil War小题2:According to the story,which of the following statements is NOT TRUE?______.

A.Harriet Tubman used to work as a nurse during the Civil War.

B.The weight hit Harriet in the head and left a scar on her head.

C.Harriet led slaves to Canada where the law couldn't hurt them.

D.The Fugitive Slave Law protected running slaves in the North.小题3:The Fugitive Slave Law______.

A.protected running slaves

B.set slaves free

C.offered good jobs for slaves

D.made Harriet's job more difficult小题4:We can infer from the story that the author______.

A.was in favor of slavery

B.was supportive about Harriet's work

C.thought the Fugitive Slave Law was good

D.thought slaves were treated well in the North

单项选择题