What information is used by a process running on one host to identify a
process running on another remote host
For a communication between a pair of processes, which process is the client and which is the server?
True or false? Why?
a, A user requests a Web page that consists of some text and two images. For this page, the client will send one request message and receive one response message.
b, Two distinct Web pages can be sent over the same persistent connection.
c, With persistent connections between browser and origin server, it is possible for a
single TCP segment to carry two distinct HTTP request messages.
d, The Date: header in the HTTP response message indicates the time and date when the HTTP response was last modified.
What is an application–layer message? A transport–layer segment? A network–layer datagram? A link–layer frame?
Consider a TCP connection between Host A and Host B. Suppose that the
TCP segments traveling from Host A to Host B have source port number 10408 and
destination port number 80. What are the source and destination port numbers for
segments traveling from Host B to Host A on the same TCP connection?
Suppose a process in Host C has a UDP socket with port number 8880,
Suppose Host A and Host B each sends a UDP segment to Host C with destination port number 8880. Will both of these two segments be directed to the same socket at Host C?
If so, how will the process at Host C know that these two segments originated from two different hosts?
Suppose that a Web server runs in Host C on port 80. Suppose this Web
server uses persistent connections, and is currently receiving requests from two different Hosts, A and B. Are all of the HTTP requests from Host A and B being sent through the same socket at Host C? If they are being passing through different sockets, do both of the sockets have port 80? Discuss and explain.
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