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网络工程基础单选题中等

使用Traceroute命令时,若目标主机不可达,通常会显示什么信息?

0{ "key": "A", "text": "Destination host unreachable" }
1{ "key": "B", "text": "Request timed out" }
2{ "key": "C", "text": "Host not found" }
3{ "key": "D", "text": "Network unreachable" }