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A socket is basically an end point of a communication link between two applications. Sockets that extend over a network connect
A socket is basically an end point of a communication link between two applications. Sockets that extend over a network connect
admin
2009-05-15
94
问题
A socket is basically an end point of a communication link between two applications. Sockets that extend over a network connect two or more applications running on(61)computers attached to the network. A socket(62)two addresses:(63). Sockets provide a(64)communication channel between one or more systems.There are(65)sockets separately using TCP and UDP.
选项
A、message and packet
B、packet and frame
C、stream and datagram
D、flow and block
答案
C
解析
一个套接字基本上是两个应用程序间通信连接的一个终点。套接字可遍布一个网络,连接两个或多个运行在属于此网络的独立的(separate)计算机上的应用程序。一个套接字由两个地址组成(is composed of):端口号和IP地址(port number and IP address)。套接字提供了一个介于两个或多个系统间的全双工的(full-duplex)通信通道。套接字分为流套接字和数据报(stream and datagram)套接字,分别使用TCP和UDP协议。
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