Transmission media and technologies
Valuable information assets are stored in data and file repositories throughout corporate networks. The data exists in databases and discrete data files on servers of different kinds, such as file servers, database servers, email servers, and even client systems. In many cases, for that information to be useful, users must access it over a network that uses shared media. To secure these valuable information assets properly when they commute over a network, it’s important to understand the different types of networks and media that might be involved.
This section explores the types of media that carry these assets; it examines how the data is encoded on the different carrier technologies and the different topologies. ...
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