2. 计算机
  3. TCP/IP (1)_____layer protocols provide services to the application (2)_____ running on a computer. The application layer does

TCP/IP (1)_____layer protocols provide services to the application (2)_____ running on a computer. The application layer does

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问题 TCP/IP  (1)_____layer protocols provide services to the application  (2)_____ running on a computer. The application layer does not define the application itself, but rather it defines  (3)_____ that applications need-like the ability to transfer a file in the case of HTTP. In short，the application layer provides an  (4)_____ 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  (5)______ layer consists of two main protocol options-the Transmission Control Protocol(TCP)And the User Datagram Protocol(UDP)．
(1)_____
A．application
B．transport
C．link
D．Network
选项 A、 
B、 
C、 
D、 
答案A
解析
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