questions generales sur linux

I have some questions about linux in general, if you can help me...
1- What are the two types of services that the Internet provides to its 
applications? What are some characteristics of each of these services?

2- Is there anyone who can briefly describe how the Internet's 
connection-oriented service provides reliable transport?

3- It has been said that flow control and congestion control are equivalent. Is 
this true for the Internet's connection-oriented service? Are the objectives of 
flow control and congestion control the same?

4- What are some of the networking technologies that use virtual circuits? Find 
good URLs that discuss and explain these technologies.

Tak for det



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