正确答案: A
Router(config)show run
题目:下列命令中,无法正确执行的是()
解析:A
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举一反三的答案和解析:
[单选题]两个VLAN之间要想通信,应该使用的设备是()
路由器
[多选题]对于IP为199.41.27.0,子网掩码为255.255.255.240,则该IP地址和子网掩码相作用会得到一系列IP,从下列选项中选出属于“有效IP”的选项:()
199.141.27.33
199.141.27.112
199.141.27.119
199.141.27.126
解析:ABCD
[单选题]默认情况下,RIP定期发送路由更新的时间是()
30S
[多选题]In which Spanning-Tree states does a switch port learn MAC addresses? (Select two)
Forwarding
Learning
解析:解析:Explanation:
[单选题]VLAN主干协议VTP的默认工作模式是()
服务器模式
[单选题]What kind of cable should be used to establish a trunked line between two Catalyst switches?
A cross-over cable
解析:解析:Explanation: A crossover cable is used to connect two of the same device types, or devices from the same OSI layer.
[单选题]为了使配置私有IP的设备能够访问互联网,应采用的技术是()
NAT
[单选题]通配符掩码和子网掩码之间的关系是()。
两者没有什么区别