题目内容

HTTP can use two types of connections, which are ( ).

A. persistent and non-persistent connection
B. connection with pipelining and without pipelining
C. TCP and UDP
D. parallel and serial connection

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( )takes for a small packet to travel from client to server and then back to the client.

A. RDT
B. threshold
C. RTT
D. overhead

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The default mode of HTTP uses ( ).

A. non-persistent connection with pipelining
B. non-persistent connection without pipelining
C. persistent connection with pipelining
D. persistent connection without pipelining

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In HTTP request messages, the request line has three fields, there are ( ).

A. the method field, the URL field and the HTTP version field
B. the method, the connection and URL field
C. the user-agent, the method and HTTP version field
D. the user-agent, the URL and the HTTP version field

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In HTTP response message, if the status code is 404, it means ( ).

A. request succeeded and the information is returned in the response
B. requested object has been permanently moved
C. the requested HTTP protocol version is not supported by the server
D. the requested document does not exist on this server

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HTTP can use two types of connections, which are ( ).

A. persistent and non-persistent connection B. connection with pipelining and without pipelining C. TCP and UDP D. parallel and serial connection

( )takes for a small packet to travel from client to server and then back to the client.

The default mode of HTTP uses ( ).

In HTTP request messages, the request line has three fields, there are ( ).

In HTTP response message, if the status code is 404, it means ( ).

A. persistent and non-persistent connection
B. connection with pipelining and without pipelining
C. TCP and UDP
D. parallel and serial connection