2. 计算机
  3. TCP/IP(71)layer　protocols　provide　services　to　the　application(72)running　on　a　computer.　The　application　layer　does　not　define　th

TCP/IP(71)layer　protocols　provide　services　to　the　application(72)running　on　a　computer.　The　application　layer　does　not　define　th

admin2008-11-02  49
问题 TCP/IP(71)layer　protocols　provide　services　to　the　application(72)running　on　a　computer.　The　application　layer　does　not　define　the　application　itself,　but　rather　it　defines(73)that　applications　need　—　like　the　ability　to　transfer　a　file　in　the　case　of　HTTP.　In　short,　the　application　layer　provides　an(74)between　software　running　on　a　computer　and　the　network　itself.　The　TCP/IP　application　layer　includes　a　relatively　large　number　of　protocols,　with　HTTP　being　only　one　of　those.　The　TCP/IP(75)layer　consists　of　two　main　protocol　options　—　the　Transmission　Control　Protocol(TCP)and　the　User　Datagram　Protocol(UDP).
选项 A、application
B、transport
C、link
D、network
答案A
解析
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