Server reply (UDP). How does the networked application running on a server know the client IP address and the port number to reply to in response to a received datagram? As the result of performing the accept () statement, the server has created a new socket that is bound to that specific client, and so sending into this new socket (without explicitly specifying the client IP address and port number) is sufficient to ensure that the sent data will be addressed to the correct client.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Server reply (UDP). How does the networked application running on a server know
the client IP address and the port number to reply to in response to a received
datagram?
As the result of performing the accept () statement, the server has created a new
socket that is bound to that specific client, and so sending into this new socket (without
explicitly specifying the client IP address and port number) is sufficient to ensure that
the sent data will be addressed to the correct client.
The server will know the port number being used by the client since all services have a
well-known port number.
The application code at the server determines client IP address and port # from the
initial segment sent by client, and must explicitly specify these values when sending into
a socket back to that client.
The server will query the DNS to learn the IP address of the client.
Not quite. Your answer isn't correct.
Transcribed Image Text:Server reply (UDP). How does the networked application running on a server know the client IP address and the port number to reply to in response to a received datagram? As the result of performing the accept () statement, the server has created a new socket that is bound to that specific client, and so sending into this new socket (without explicitly specifying the client IP address and port number) is sufficient to ensure that the sent data will be addressed to the correct client. The server will know the port number being used by the client since all services have a well-known port number. The application code at the server determines client IP address and port # from the initial segment sent by client, and must explicitly specify these values when sending into a socket back to that client. The server will query the DNS to learn the IP address of the client. Not quite. Your answer isn't correct.
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