单项选择题路由器命令Router>sh int 的作用是______。
单项选择题如果在一台主机的Windows环境下执行Ping命令得到下列信息Pinging www.nankai.edu.cn [202.113.16.33] with 32 bytes of data:Reply from 202.113.16.33:bytes=32time<1msTTL=128Reply from 202.113.16.33:bytes=32time<1msTTL=128Reply from 202.113.16.33:bytes=32time<1msTTL=128Reply from 202.113.16.33:bytes=32time<1msTTL=128Ping statistics for 202.113.16.33:Packets:Sent=4,Received=4,Lost=0(0% loss),Approximate round trip times in milli-seconds:Minimum=0ms,Maximum=0ms,Average=0ms那么下列结论中无法确定的是______。