問題詳情
46.網路層所使用之IP協定（InternetProtocol)表頭中有一 TTL欄位（Time To Live )，請問每當IP 封包（Datagram)經過一次路由器時，TTL欄位是否會有任何改變？
(A) TTL之值不改變
(B) TTL之值會減1
(C) TTL之值會加1
(D) TTL之值會被設定為0
(A) TTL之值不改變
(B) TTL之值會減1
(C) TTL之值會加1
(D) TTL之值會被設定為0
參考答案
無參考答案
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