第30题: [单项选择]RARP协议用于 (33) 。 A. 根据交换的路由信息动态生成路由表 B. 集中管理和动态分配网络中的IP地址 C. 把MAC地址转换成对应的IP地址 D. 根据IP地址查询对应的MAC地址 参考答案:C 答案解析:[要点解析] 反向地址转换协议(RARP,Reverse Address Resolution Protocol)用于把MAC地址转换成对应的IP地址。通常主机的IP地址保存在硬盘中,机器关断电源后该
第33题: [单项选择]Passage Two Questions 30 to 32 are based on the passage you have just heard. A. Grassland for animals. B. A land covered with trees. C. A steep slope of a hill. D. A land with fertile soil. 参考答案:C 答案解析:[听力原文] 30-32 (30) "Marginal" lands might have low quality soil. Or they might be on a hill