[单选题]路由器“全局模式”的提示符为()
正确答案 :C
(config)
[单选题]通配符掩码和子网掩码之间的关系是()。
正确答案 :A
两者没有什么区别
[单选题]OSI七层模型中,数据链路层的数据封装名称为()
正确答案 :B
帧
[单选题]IP地址为:192.168.50.70,掩码为:255.255.255.248,则该IP地址所在子网的广播地址为()
正确答案 :D
192.168.50.71
[多选题]Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet? (Select two answer choices.)
正确答案 :BD
Half-duplex Ethernet uses a loopback circuit to detect collisions.
Full-duplex Ethernet makes use of two pairs of wires for data.
解析:解析:Explanation:
[单选题]The network administrator has configured port security on a Ezonexam switch. Why would a network administrator configure port security on this Ezonexam device?
正确答案 :A
To prevent unauthorized hosts from getting access to the LAN
解析:解析:Explanation:
[单选题]A Ezonexam PC has the IP address 172.16.209.10 /22. What is the subnet of this address?
正确答案 :C
172.16.208.0
解析:解析:Explanation:
[单选题]哪一个命令可以设置路由器特权用户的“明文密码”()
正确答案 :A
enable password
[单选题]命令“ping127.0.0.1”的功能是()
正确答案 :C
测试TCP/IP协议是否正常
[单选题]“InsideGlobal”地址在NAT配置里表示的是什么()
正确答案 :B
一个注册的地址是表示一个内部的主机到外部网络
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