题目内容

[ 判断题 ] C1计算机网络与因特网 (1分)P2P应用中,也有总是打开的服务器。 ( )

A. 对
B. 错

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[ 判断题 ] C1计算机网络与因特网 (1分)与HTTP协议对比,SMTP是一种推协议(push protocol),而HTTP是一种拉协议(pull protocol)。 ( )

A. 对
B. 错

End system does not include （）.

A. router
B. smart phone
C. PCs
D. Web servers

Which of the following is not a performance measure in computer networks.

A. delay
B. packet loss
C. packet size
D. end-to-end throughput

[ 判断题 ] (2分)Packet switching is commonly used in traditional telephone networks ( )

A. True
B. False