题目内容

Which layer in the Internet protocol stack doesn't a router process? ( )

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

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Which of the following is the decimal for the IP address 11000000 00110100 00000000 00001111? ( )

A. 192.52.0.16
B. 192.51.0.15
C. 128.52.0.15
D. 192.52.0.15

What is the name of a link-layer packet? ( )

A. message
B. segment
C. datagram
D. frame

[ 判断题 ] HTTP服务器是无状态的,不保存客户信息。Cookie允许Web站点跟踪、识别用户;服务器可以限制用户访问,或把内容与用户身份关联。这样,Cookie不会造成用户隐私问题。( )

A. 对
B. 错

[ 判断题 ] HTTP的服务端口是80。 ( )

A. 对
B. 错

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