问题 填空题

某单位网络拓扑结构如下图所示。该单位网络中,客户端全部从DHCP服务器处动态获取IP地址,该DHCP服务器设置的地址池为192.168.1.1-192.168.1.253。请回答以下问题。

(1)用户通过命令 (1) 可以看到自己申请到的本机IP地址,用命令 (2) 可以重新向DHCP服务器申请IP,用命令 (3) 可以释放IP地址。

(2)该单位服务器发现与其它计算机IP地址冲突,网络管理员检查发现本网络内设有其它DHCP服务器,并且除服务器外其他客户端没有设置静态IP地址,此时应检查调整DHCP服务器的(4)。

(3)某Windows客户端开机后发现无法上网,使用ipconfig发现本机自动获取的IP地址是169.254.8.1,此时检查DHCP服务器工作正常,且地址池中尚有未分配地址,此时应检查(5)。

3()

答案

参考答案:ipconfig/release

阅读理解

A 10-year-old boy fatally shot his father Friday, striking him several times as he sat in the front seat of a SUV to pick up the boy from his mother’s home for a weekend visit.

The incident happened about 3:45 p.m. on a cul-de-sac (死胡同)in the 1700 block of Cedar Cove Court, said Sgt. B. E. Williams of the Harris County Sheriff’s Department.

An investigation found that Rick James Lohstroh, 41, was shot by his son, who was sitting in the back seat of the man’s Toyota 4-Runner, said Sgt. B. E. Williams of the Harris County Sheriff’s Department. The shooting took place outside the home of Lohstroh’s ex-wife, where the boy lives with his mother and a 7-year-old brother.

“We’re not certain of anything until we finish our investigation,” Williams said. “The information we have at this time is that the 10-year-old did fire the weapon.”

The mother and the 7-year-old were inside the house when the shooting occurred, said Williams.

Williams said the gun belonged to the boy’s mother. After firing shots through the back seat, the boy exited(退出) the back of the vehicle and continued to fire at the car.

The man died on the way to Memorial Herman Hospital. Lohstroh was a doctor at the University of Texas Medical Branch. The man and woman shared custody(监护)of the children. Williams said the mother and the boy were still in the home talking to investigators Friday night.

Neighbors described the family as being quiet and keeping to themselves.

Justin Gray, 17, was walking in the neighborhood when he heard gunshots. “We’ve had a suicide(自杀)in this neighborhood once, but never anything like this,” Gray said.

小题1: The best title for the news should be         .

A.A Boy Shot His Father

B.Shooting Kill a Father

C.An Unbelievable Tragedy

D.A Ten-Year-Old Boy’s Cruelty小题2:Which of the following is TRUE according to the news?

A.The father is not responsible for the boy.

B.The family don’t like associating with their neighbours.

C.The boy lives with Rick James Lohstroh.

D.The boy has no brothers or sisters.小题3:What can we infer from the report?

A.The tragedy happened because the boy had seen too many films showing violence.

B.The boy killed his father after he quarreled with his father.

C.Such things often occurred in this neighbourhood.

D.The boy’s parents got divorced (离婚).小题4:The reason why the boy shot his father      .

A.is clear

B.can’t be made out

C.is not known

D.is quite simple

单项选择题