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如果将59.67.33.128/25划分3个子网,其中第1个子网能容纳58台主机,后两个子网分别能容纳26台主机,要求网络地址从小到大依次分配给3个子网,这3个子网的掩码分别为1、______、2、______和3、______,可用的IP地址段分别为4、______、5、______和6、______。(注:IP地址段的起始地址和结束地址问必须用减号“-”连接,中间不能有空格) 1()

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下列Windows命令巾,可以用于检测本机配置的域名服务器是否工作正常的命令是()。

A. netstat
B. pathping
C. ipconfig
D. nbstat

计算并填写下表。IP地址111.181.21.9子网掩码255.192.0.0地址类别()网络地址()直接广播地址()主机号()子网内的最后一个可用IP地址() 地址类别()

计算并填写下表。IP地址111.181.21.9子网掩码255.192.0.0地址类别______网络地址______直接广播地址______主机号______子网内的最后一个可用IP地址______ 网络地址()

Passage Three For some time after the Spanish won Granada from the Moors, Spanish kings enjoyed visiting that delightful city. After many years, however, they were frightened away by a series of earthquakes, during which several houses fell to the ground, and the old towers shook to their foundations. After that, many years passed without visits from royal guests. The noble palaces of Granada remained silent and closed, and that loveliest of palaces, the Alhambra, lay sadly alone with no one to care for its beautiful gardens. People no longer visited the tower where once three beautiful Moorish princesses had lived. Only birds and insects found their way to those tower rooms which had once been the home of the king’s lovely daughters. Zayda, Zorayda, and Zorahayda. It was said that the spirit of the youthful princess Zorahayda, who had died in that tower, was often seen by moonlight, seated beside the fountain in the hall, or weeping beside the high stone wall. It was said that the music of her silver lute could be heard at midnight by travelers passing along the road. After many years, the city of Granada was honored once again by royal guests. All the world knows that King Philip V married Elizabeth or Isabella (for they are the same), the beautiful princess of Parma. For a visit of this famous couple, the Alhambra palace was repaired and made ready, with all possible speed, when the king and queen arrived with all the lords and ladies of their court, there was a great change in the lonely palace. Drums and roy- al music were heard, fine horses were ridden about the avenues and inner court, brightly colored flags again were flown above the ancient walls. Inside the palace, however, life was quiet and calm. There was the soft sound of long robes, and the careful steps and murmuring voices of those who respectfully served the king and queen. In the gardens there was soft music, and there was quiet talk among the young lords and ladies of the court. According to the passage, which is not true during the earthquake

A. Several houses fell to the ground.
B. The old tower shook to their foundations.
C. Spanish kings were frightened away.
D. Spanish won Granada.

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