Refer to the exhibit. A network administrator attempts to ping Host2 from Host1 and receives the result that are shown. What is a possible problem?
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【正确答案】 1、C    
【答案解析】10.1.1.1回应的不可达报文,所以我们可以知道报文在到达10.1.1.1之后就没有传递下去.也就是10.1.1.1之后的链路就已经失效。