【单选题】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 TransmissionControl Protocol (TCP) and the UserDatagram Protocol (UDP).
A.application
B.transport
C.link
D.network
网考网参考答案:A
网考网解析:
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