[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()
正确答案 :A
NAT
[单选题]路由器上激活端口的命令是()
正确答案 :B
no shutdown
[多选题]网络中经常使用DDN服务,请选出DDN的优点()
正确答案 :ADE
传输质量高
使用虚电路
专用线路
解析:ADE
[单选题]An administrator issues the show ip interface s0/0 command and the output displays that interface Serial0/0 is up, line protocol is up.What does "line protocol is up" specifically indicate about the interface?
正确答案 :C
Keepalives are being received on the interface.
解析:解析:Explanation:
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