题目内容

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

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

The service of TCP can't guarantee ( ).

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( ).

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