题目内容

The service of TCP can't guarantee ( ).

A. delivery of all data without error
B. delivery of all data in the proper order
C. the rate of delivery
D. congestion control

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In the following applications, which one uses UDP?( )

A. E-mail
B. web application
C. file transfer
DNS

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In the following descriptions about HTTP, which one is not correct?( )

A. HTTP uses UDP as its underlying transport protocol.
B. HTTP uses TCP as its underlying transport protocol.
C. HTTP is a stateless protocol.
D. HTTP is client-server architecture.

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Suppose a web page consists of a base HTML file, 5 JEPG images and a java applet, and also suppose HTTP uses persistent connection without pipelining, the total response time is( ).

A. 2 RTT
B. 8 RTT
C. 12 RTT
D. 14 RTT

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In HTTP response message, if the requested HTTP protocol version is not supported, the status code is( ).

A. 200
B. 301
C. 400
D. 505

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The service of TCP can't guarantee ( ).

A. delivery of all data without error B. delivery of all data in the proper order C. the rate of delivery D. congestion control

In the following applications, which one uses UDP?( )

In the following descriptions about HTTP, which one is not correct?( )

Suppose a web page consists of a base HTML file, 5 JEPG images and a java applet, and also suppose HTTP uses persistent connection without pipelining, the total response time is( ).

In HTTP response message, if the requested HTTP protocol version is not supported, the status code is( ).

A. delivery of all data without error
B. delivery of all data in the proper order
C. the rate of delivery
D. congestion control