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Sams Teach Yourself TCP/IP in 24 Hours, Fifth Edition by Joe Casad

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Hour 1. What Is TCP/IP?

What You’ll Learn in This Hour:

Networks and network protocols

History of TCP/IP

Important features of TCP/IP

Transport Control Protocol/Internet Protocol (TCP/IP) is a protocol system—a collection of protocols that supports network communications. The answer to the question What is a protocol? must begin with the question What is a network?

This hour describes what a network is and shows why networks need protocols. You also learn what TCP/IP is, what it does, and where it began.

At the completion of this hour, you’ll be able to

• Define the term network

• Explain what a network protocol suite is

• Explain what TCP/IP is

• Discuss the of TCP/IP

• List some important features of TCP/IP

• Identify the organizations ...

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