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=32 time<1ms TTL=128 Reply from 202.113.16.33: bytes=32 time<1ms TTL=128 Reply from 202.113.16.33: bytes=32 time<1ms TTL=128 Reply from 202.113.16.33: bytes=32 time<1ms TTL=128 Ping 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（）。