Chapter 3. Telecommunications and Network Security

This chapter covers the following topics:

Image OSI model: An explanation of the functions of the seven layers of the OSI model

Image TCP/IP model: A discussion of the TCP/IP model and its relationship to the OSI model

Image Common TCP/UDP ports: A description of the function of port numbers and common standard ports

IP addressing: A look at both logical and physical addressing systems and their interrelationship ...

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