what is the main importance things to know in network

Re: network 80 80

This depends on you background and what you need this for.

Re: network 80 80

There is no possible way to answer that question.....

Re: network 80 80

Understanding IP addressing and security. You can find these things in the help section of your opperating system.

Re: network 80 80

OSI model,packets travel/communication, encryption
You might want to take a look at Computer Networking book for detailed explanation of the terms

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