题目内容

In the following four descriptions, which one is correct?( )

A. In C/S architecture, clients communicate with each other directly.
B. In C/S architecture, client has a fixed well-known address.
C. In P2P architecture, peers communicate with each other directly.
D. In P2P architecture, peer has a fixed well-known address.

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In the context of a communication session between a pair of process, the process that initiates the communication is labeled as the( ) , the process that waits to be contacted to begin the session is labeled as the( ).

A. client process, server process
B. sending process, receiving process
C. input process, output process
D. communicating process, connecting process

A socket is the interface between ( )within a host.

A. the network layer and the link layer
B. the link layer and the physical layer
C. the application layer and the transport layer
D. the transport layer and the network layer

In the following applications, which one is a loss-tolerant application?( )

A. E-mail
B. file transfer
C. instant messaging
D. real-time audio

In the following applications, which one is a bandwidth-sensitive application?( )

A. E-mail
B. web application
C. real-time audio
D. file transfer

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