TCP/IP（请作答此空）layer protocols provide services to the application（ ）running on a computer.The application layer does not define the application itself,but rather it defines（ ）that applications need--like the ability to transfer a file in the case of HTTP.In short,the application layer provides an（ ）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（ ）layer consists of two main protocol options--the Transmission Control Protocol（TCP）and the User Datagram Protocol（UDP）.

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TCP/IP（ ）layer protocols provide services to the application（ ）running on a computer.The application layer does not define the application itself,but rather it defines（ ）that applications need--like the ability to transfer a file in the case of HTTP.In short,the application layer provides an（ ）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（请作答此空）layer consists

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在 TCP/IP 体系结构中（请作答此空）属于应用层协议。

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在TCP/IP协议栈中，ARP协议的作用是( )，RARP协议的作用是(请作答此空)。

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TCP/IP是( )。

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The TCP protocol is a （ ） layer protocol.

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