Up to this point, the logical aspects of computer networks have been focused on. Understanding the logical concepts will make grasping the practical applications of those concepts easier. Let's review what has been covered so far:
The Open Systems Interconnect Reference Model—The internationally accepted standard for describing and categorizing the elements (and related network protocols) that make up the communication process.
Transmission media and encoding techniques—Transmission media are the combination of the OSI Layer 1 transmission medium and the OSI Layer 2 transmission protocol.
Network topologies—The star, bus, and ring transport medium (OSI Layer 1) configurations.
Network transmission protocols (OSI Layer 2)—These are responsible ...