单项选择题

当服务器组中一台主机出现故障,该主机上运行的程序将立即转移到组内其他主机。下列技术中能够实现上述需求的是( )。

A.RAID
B.Cluster
C.RISC
D.CISC
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单项选择题

在Cisco路由器上建立一个名为zw246的DHCP地址池,地址池的IP地址是176.115.246.0/24,其中不用于动态分配的地址有176.115.246.2-176.115.246.10,缺省网关为176.115.246.1,域名为tj.edu.cn,域名服务器地址为176.115.129.26,地址租用时间设定为6小时30分钟。下列DHCP地址池的配置,正确的是( )。

A.Router(config)#ip dhcp pool zw246 Router(dhcp-config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10 Router(dhcp-config)#network 176.115.246.0 255.255.255.0 Router(dhcp-config)#defauh-router 176.115.246.1 Router(dhcp-config)#domain-name tj.edu.cn Router(dhcp-config)#dns-server address 176.115.129.26 Router(dhcp-config)#lease 0 6 30
B.Router(config)#ip dhcp excluded-address 176.115.246.2-10 Router(config)#ip dhcp pool zw246 Router(dhcp-config)#network 176.115.246.0 255.255.255.0 Router(dhcp-config)#default-router 176.115.246.1 Router(dhcp-config)#domain-name tj.edu.on Router(dhcp-config)#dns-server address 176.115.129.26 Router(dhcp-config)#lease 0 6 30
C.Router(config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10 Router(config)#ip dhcp pool zw246 Router(dhcp-config)#network 176.115.246.0 255.255.255.0 Router(dhcp-config)#default-router 176.115.246.1 Router(dhcp-config)#domain-narlle tj.edu.cn Router(dhcp-config)#dns-server address 176.115.129.26 Router(dhcp-config)#lease 0 6 30
D.Router(config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10 Router(config)#ip dhcp pool zw246 Router(dhcp-config)#network 176.115.246.0 255.255.255.0 Router(dhcp-config)#default-router 176.115.246.1 Router(dhcp-config)#domain-name tj.edu.ca Router(dhcp-config)#dns-server address 176.115.129.26 Router(dhcp-config)#lease 30 6 0
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