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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（）
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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
在一台Cisco路由器上执行show access-lists命令显示如下一组限制远程登录的访问控制列表信息 Standard IP access list 40 permit 167.112.75.89 (54 matches) permit 202.113.65.56 (12 matches) deny any (1581 matches) 根据上述信息，正确的access-list的配置是（）。
某校园网采用RIPv1路由协议，通过一台Cisco路由器R1互连2个子网，地址分别为213.33.56.0和213.33.56.128，掩码为255.255.255.128，并要求过滤g0/1接口输出的路由更新信息。那么R1正确的路由协议配置是（）。
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