Refer to the exhibit. An administrator pings the default gateway at 10.10.10.1 and sees the output as shown. At which OSI layer is the problem?
  • 1、
【正确答案】 1、E    
【答案解析】如下图,一名管理员ping 默认网关发现如下输 出,最有可能是那一层OSI出问题?