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计算机
Refer to the exhibit. Which three statements correctly describe Network Device A?
Refer to the exhibit. Which three statements correctly describe Network Device A?
admin
2019-04-08
18
问题
Refer to the exhibit. Which three statements correctly describe Network Device A?
选项
A、 With a network wide mask of 255.255.255.128, each interface does not require an IP address.
B、 With a network wide mask of 255.255.255.128, each interface does require an IP address on a unique IP subnet.
C、 With a network wide mask of 255.255.255.0, must be a Layer 2 device for the PCs to communicate with each other.
D、 With a network wide mask of 255.255.255.0, must be a Layer 3 device for the PCs to communicate with each other.
E、 With a network wide mask of 255.255.254.0, each interface does not require an IP address.
答案
B,D,E
解析
如图,哪三个选项正确的描述了网络设备A?
考点分析:这题考的是子网掩码的问题。使用掩码255.255.255.128和255.255.255.0时,两台主机的IP地址属于两个网段,所以A要用路由器(三层设备)才能通信,所以A设备每个接口需要设置IP地址。使用掩码255.255.254.0是,两台主机属于同一个网段,所以A要使用switch或hub就能通信,且不需要ip地址。
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